js: regenerate wrappers

Elements Project/libwally-core
019385e5 View source ↗
Public commit record
What the developer wrote

Authored by Jon Griffiths
28/100 · Opaque
js: regenerate wrappers
✓ Subject identifies a change! No meaningful explanatory body
The short version
What changed, and why it matters

This commit only updates the TypeScript type-declaration file for the JavaScript/WebAssembly wrapper. It widens many function parameters from 'Buffer|Uint8Array' to 'Buffer|Uint8Array|null', meaning callers are now allowed to pass null. The change is purely in type definitions; the actual C/WASM implementation is not modified here. It makes the API more permissive on paper, which could hide programming mistakes, but it does not by itself create a runtime vulnerability.
Recommended action
Treat as a typing/API ergonomics change, not a security patch. If reviewing for security, verify in the wrapper generator and underlying C library that the functions actually handle NULL inputs safely; otherwise the type change could mask null-deref bugs. No immediate action is required from this commit alone.
Security signals we found

Generated TypeScript declaration file only
Parameter types broadened to allow null across cryptographic and transaction APIs
No implementation or wrapper logic changes in diff
No vendor security context, CVE, or advisory references supplied
Technical analysis
Evidence from the diff

The diff is a wholesale regeneration of src/wasm_package/src/index.d.ts. Every change visible is the addition of ‘|null’ to Buffer|Uint8Array parameter types across the autogenerated API surface. No implementation code, no wrapper glue logic, and no security-critical behavior changes are present in the commit. The commit message says only ‘js: regenerate wrappers’. Because this is a generated file, the meaningful security context would be whether the generator or underlying C functions were changed to safely accept null; that context is absent from the supplied materials.
Changed components

src/wasm_package/src/index.d.ts
Inspect captured patch +300 / −300
diff --git a/src/wasm_package/src/index.d.ts b/src/wasm_package/src/index.d.ts
index b34ed0c..f213c33 100644
--- a/src/wasm_package/src/index.d.ts
+++ b/src/wasm_package/src/index.d.ts
@@ -20,42 +20,42 @@ export type Ref_wally_tx_witness_stack = OpaqueRef<'wally_tx_witness_stack'> | n
 export type Ref_wally_operations = OpaqueRef<'operations'>;
 
 // BEGIN AUTOGENERATED
-export function addr_segwit_from_bytes(bytes: Buffer|Uint8Array, addr_family: string, flags: number): string;
+export function addr_segwit_from_bytes(bytes: Buffer|Uint8Array|null, addr_family: string, flags: number): string;
 export function addr_segwit_get_version(addr: string, addr_family: string, flags: number): number;
 export function addr_segwit_n_get_version(addr: string, addr_len: number, addr_family: string, addr_family_len: number, flags: number): number;
 export function addr_segwit_n_to_bytes(addr: string, addr_len: number, addr_family: string, addr_family_len: number, flags: number): Buffer;
 export function addr_segwit_to_bytes(addr: string, addr_family: string, flags: number): Buffer;
 export function address_to_scriptpubkey(addr: string, network: number): Buffer;
-export function ae_host_commit_from_bytes(entropy: Buffer|Uint8Array, flags: number): Buffer;
-export function ae_sig_from_bytes(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, entropy: Buffer|Uint8Array, flags: number): Buffer;
-export function ae_signer_commit_from_bytes(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, commitment: Buffer|Uint8Array, flags: number): Buffer;
-export function ae_verify(pub_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, entropy: Buffer|Uint8Array, s2c_opening: Buffer|Uint8Array, flags: number, sig: Buffer|Uint8Array): void;
-export function aes_cbc_get_maximum_length(key: Buffer|Uint8Array, iv: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): number;
-export function aes_cbc_with_ecdh_key_get_maximum_length(priv_key: Buffer|Uint8Array, iv: Buffer|Uint8Array, bytes: Buffer|Uint8Array, pub_key: Buffer|Uint8Array, label: Buffer|Uint8Array, flags: number): number;
-export function aes_len(key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): number;
-export function asset_blinding_key_from_seed(bytes: Buffer|Uint8Array): Buffer;
-export function asset_blinding_key_to_abf(bytes: Buffer|Uint8Array, hash_prevouts: Buffer|Uint8Array, output_index: number): Buffer;
-export function asset_blinding_key_to_abf_vbf(bytes: Buffer|Uint8Array, hash_prevouts: Buffer|Uint8Array, output_index: number): Buffer;
-export function asset_blinding_key_to_ec_private_key(bytes: Buffer|Uint8Array, script: Buffer|Uint8Array): Buffer;
-export function asset_blinding_key_to_ec_public_key(bytes: Buffer|Uint8Array, script: Buffer|Uint8Array): Buffer;
-export function asset_blinding_key_to_vbf(bytes: Buffer|Uint8Array, hash_prevouts: Buffer|Uint8Array, output_index: number): Buffer;
-export function asset_final_vbf(values: BigUint64Array|Array<bigint>, num_inputs: number, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array): Buffer;
-export function asset_generator_from_bytes(asset: Buffer|Uint8Array, abf: Buffer|Uint8Array): Buffer;
-export function asset_pak_whitelistproof_len(online_keys: Buffer|Uint8Array, offline_keys: Buffer|Uint8Array, key_index: number, sub_pubkey: Buffer|Uint8Array, online_priv_key: Buffer|Uint8Array, summed_key: Buffer|Uint8Array): number;
+export function ae_host_commit_from_bytes(entropy: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ae_sig_from_bytes(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ae_signer_commit_from_bytes(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ae_verify(pub_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, s2c_opening: Buffer|Uint8Array|null, flags: number, sig: Buffer|Uint8Array|null): void;
+export function aes_cbc_get_maximum_length(key: Buffer|Uint8Array|null, iv: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): number;
+export function aes_cbc_with_ecdh_key_get_maximum_length(priv_key: Buffer|Uint8Array|null, iv: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, pub_key: Buffer|Uint8Array|null, label: Buffer|Uint8Array|null, flags: number): number;
+export function aes_len(key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): number;
+export function asset_blinding_key_from_seed(bytes: Buffer|Uint8Array|null): Buffer;
+export function asset_blinding_key_to_abf(bytes: Buffer|Uint8Array|null, hash_prevouts: Buffer|Uint8Array|null, output_index: number): Buffer;
+export function asset_blinding_key_to_abf_vbf(bytes: Buffer|Uint8Array|null, hash_prevouts: Buffer|Uint8Array|null, output_index: number): Buffer;
+export function asset_blinding_key_to_ec_private_key(bytes: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null): Buffer;
+export function asset_blinding_key_to_ec_public_key(bytes: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null): Buffer;
+export function asset_blinding_key_to_vbf(bytes: Buffer|Uint8Array|null, hash_prevouts: Buffer|Uint8Array|null, output_index: number): Buffer;
+export function asset_final_vbf(values: BigUint64Array|Array<bigint>, num_inputs: number, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null): Buffer;
+export function asset_generator_from_bytes(asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null): Buffer;
+export function asset_pak_whitelistproof_len(online_keys: Buffer|Uint8Array|null, offline_keys: Buffer|Uint8Array|null, key_index: number, sub_pubkey: Buffer|Uint8Array|null, online_priv_key: Buffer|Uint8Array|null, summed_key: Buffer|Uint8Array|null): number;
 export function asset_pak_whitelistproof_size(num_keys: number): number;
-export function asset_rangeproof(value: bigint, pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array, commitment: Buffer|Uint8Array, extra: Buffer|Uint8Array, generator: Buffer|Uint8Array, min_value: bigint, exp: number, min_bits: number): Buffer;
+export function asset_rangeproof(value: bigint, pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, extra: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null, min_value: bigint, exp: number, min_bits: number): Buffer;
 export function asset_rangeproof_get_maximum_len(value: bigint, min_bits: number): number;
-export function asset_rangeproof_with_nonce(value: bigint, nonce_hash: Buffer|Uint8Array, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array, commitment: Buffer|Uint8Array, extra: Buffer|Uint8Array, generator: Buffer|Uint8Array, min_value: bigint, exp: number, min_bits: number): Buffer;
-export function asset_scalar_offset(value: bigint, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array): Buffer;
-export function asset_surjectionproof_len(output_asset: Buffer|Uint8Array, output_abf: Buffer|Uint8Array, output_generator: Buffer|Uint8Array, bytes: Buffer|Uint8Array, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, generator: Buffer|Uint8Array): number;
+export function asset_rangeproof_with_nonce(value: bigint, nonce_hash: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, extra: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null, min_value: bigint, exp: number, min_bits: number): Buffer;
+export function asset_scalar_offset(value: bigint, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null): Buffer;
+export function asset_surjectionproof_len(output_asset: Buffer|Uint8Array|null, output_abf: Buffer|Uint8Array|null, output_generator: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): number;
 export function asset_surjectionproof_size(num_inputs: number): number;
-export function asset_unblind(pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array, proof: Buffer|Uint8Array, commitment: Buffer|Uint8Array, extra: Buffer|Uint8Array, generator: Buffer|Uint8Array): [asset_out: Buffer, abf_out: Buffer, vbf_out: Buffer, value_out: bigint];
-export function asset_unblind_with_nonce(nonce_hash: Buffer|Uint8Array, proof: Buffer|Uint8Array, commitment: Buffer|Uint8Array, extra: Buffer|Uint8Array, generator: Buffer|Uint8Array): [asset_out: Buffer, abf_out: Buffer, vbf_out: Buffer, value_out: bigint];
-export function asset_value_commitment(value: bigint, vbf: Buffer|Uint8Array, generator: Buffer|Uint8Array): Buffer;
-export function base58_from_bytes(bytes: Buffer|Uint8Array, flags: number): string;
+export function asset_unblind(pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null, proof: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, extra: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): [asset_out: Buffer, abf_out: Buffer, vbf_out: Buffer, value_out: bigint];
+export function asset_unblind_with_nonce(nonce_hash: Buffer|Uint8Array|null, proof: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, extra: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): [asset_out: Buffer, abf_out: Buffer, vbf_out: Buffer, value_out: bigint];
+export function asset_value_commitment(value: bigint, vbf: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): Buffer;
+export function base58_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): string;
 export function base58_get_length(str_in: string): number;
 export function base58_n_get_length(str_in: string, str_len: number): number;
-export function base64_from_bytes(bytes: Buffer|Uint8Array, flags: number): string;
+export function base64_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): string;
 export function base64_get_maximum_length(str_in: string, flags: number): number;
 export function base64_n_get_maximum_length(str_in: string, str_len: number, flags: number): number;
 export function bip32_key_free(hdkey: Ref_ext_key): void;
@@ -71,10 +71,10 @@ export function bip32_key_from_parent_path_str(hdkey: Ref_ext_key, path_str: str
 export function bip32_key_from_parent_path_str_n(hdkey: Ref_ext_key, path_str: string, path_str_len: number, child_num: number, flags: number): Ref_ext_key;
 export function bip32_key_from_parent_path_str_n_noalloc(hdkey: Ref_ext_key, path_str: string, path_str_len: number, child_num: number, flags: number, output: Ref_ext_key): void;
 export function bip32_key_from_parent_path_str_noalloc(hdkey: Ref_ext_key, path_str: string, child_num: number, flags: number, output: Ref_ext_key): void;
-export function bip32_key_from_seed(bytes: Buffer|Uint8Array, version: number, flags: number): Ref_ext_key;
-export function bip32_key_from_seed_custom(bytes: Buffer|Uint8Array, version: number, hmac_key: Buffer|Uint8Array, flags: number): Ref_ext_key;
-export function bip32_key_from_seed_custom_noalloc(bytes: Buffer|Uint8Array, version: number, hmac_key: Buffer|Uint8Array, flags: number, output: Ref_ext_key): void;
-export function bip32_key_from_seed_noalloc(bytes: Buffer|Uint8Array, version: number, flags: number, output: Ref_ext_key): void;
+export function bip32_key_from_seed(bytes: Buffer|Uint8Array|null, version: number, flags: number): Ref_ext_key;
+export function bip32_key_from_seed_custom(bytes: Buffer|Uint8Array|null, version: number, hmac_key: Buffer|Uint8Array|null, flags: number): Ref_ext_key;
+export function bip32_key_from_seed_custom_noalloc(bytes: Buffer|Uint8Array|null, version: number, hmac_key: Buffer|Uint8Array|null, flags: number, output: Ref_ext_key): void;
+export function bip32_key_from_seed_noalloc(bytes: Buffer|Uint8Array|null, version: number, flags: number, output: Ref_ext_key): void;
 export function bip32_key_get_chain_code(hdkey: Ref_ext_key): Buffer;
 export function bip32_key_get_child_num(hdkey: Ref_ext_key): number;
 export function bip32_key_get_depth(hdkey: Ref_ext_key): number;
@@ -85,29 +85,29 @@ export function bip32_key_get_priv_key(hdkey: Ref_ext_key): Buffer;
 export function bip32_key_get_pub_key(hdkey: Ref_ext_key): Buffer;
 export function bip32_key_get_pub_key_tweak_sum(hdkey: Ref_ext_key): Buffer;
 export function bip32_key_get_version(hdkey: Ref_ext_key): number;
-export function bip32_key_init(version: number, depth: number, child_num: number, chain_code: Buffer|Uint8Array, pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array, hash160: Buffer|Uint8Array, parent160: Buffer|Uint8Array): Ref_ext_key;
-export function bip32_key_init_noalloc(version: number, depth: number, child_num: number, chain_code: Buffer|Uint8Array, pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array, hash160: Buffer|Uint8Array, parent160: Buffer|Uint8Array, output: Ref_ext_key): void;
+export function bip32_key_init(version: number, depth: number, child_num: number, chain_code: Buffer|Uint8Array|null, pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null, hash160: Buffer|Uint8Array|null, parent160: Buffer|Uint8Array|null): Ref_ext_key;
+export function bip32_key_init_noalloc(version: number, depth: number, child_num: number, chain_code: Buffer|Uint8Array|null, pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null, hash160: Buffer|Uint8Array|null, parent160: Buffer|Uint8Array|null, output: Ref_ext_key): void;
 export function bip32_key_serialize(hdkey: Ref_ext_key, flags: number): Buffer;
 export function bip32_key_strip_private_key(hdkey: Ref_ext_key): void;
 export function bip32_key_to_addr_segwit(hdkey: Ref_ext_key, addr_family: string, flags: number): string;
 export function bip32_key_to_address(hdkey: Ref_ext_key, flags: number, version: number): string;
 export function bip32_key_to_base58(hdkey: Ref_ext_key, flags: number): string;
-export function bip32_key_unserialize(bytes: Buffer|Uint8Array): Ref_ext_key;
-export function bip32_key_unserialize_noalloc(bytes: Buffer|Uint8Array, output: Ref_ext_key): void;
+export function bip32_key_unserialize(bytes: Buffer|Uint8Array|null): Ref_ext_key;
+export function bip32_key_unserialize_noalloc(bytes: Buffer|Uint8Array|null, output: Ref_ext_key): void;
 export function bip32_key_with_tweak_from_parent_path(hdkey: Ref_ext_key, child_path: Uint32Array|number[], flags: number): Ref_ext_key;
 export function bip32_key_with_tweak_from_parent_path_noalloc(hdkey: Ref_ext_key, child_path: Uint32Array|number[], flags: number, output: Ref_ext_key): void;
 export function bip32_path_from_str_len(path_str: string, child_num: number, multi_index: number, flags: number): number;
 export function bip32_path_from_str_n_len(path_str: string, path_str_len: number, child_num: number, multi_index: number, flags: number): number;
 export function bip32_path_str_get_features(path_str: string): number;
 export function bip32_path_str_n_get_features(path_str: string, path_str_len: number): number;
-export function bip340_tagged_hash(bytes: Buffer|Uint8Array, tag: string): Buffer;
-export function bip341_control_block_verify(bytes: Buffer|Uint8Array): void;
+export function bip340_tagged_hash(bytes: Buffer|Uint8Array|null, tag: string): Buffer;
+export function bip341_control_block_verify(bytes: Buffer|Uint8Array|null): void;
 export function bip38_get_flags(bip38: string): number;
-export function bip38_raw_get_flags(bytes: Buffer|Uint8Array): number;
+export function bip38_raw_get_flags(bytes: Buffer|Uint8Array|null): number;
 export function bip39_get_languages(): string;
 export function bip39_get_word(w: Ref_words, index: number): string;
 export function bip39_get_wordlist(lang: string): Ref_words;
-export function bip39_mnemonic_from_bytes(w: Ref_words, bytes: Buffer|Uint8Array): string;
+export function bip39_mnemonic_from_bytes(w: Ref_words, bytes: Buffer|Uint8Array|null): string;
 export function bip39_mnemonic_to_bytes(w: Ref_words, mnemonic: string): Buffer;
 export function bip39_mnemonic_to_seed512(mnemonic: string, passphrase: string): Buffer;
 export function bip39_mnemonic_validate(w: Ref_words, mnemonic: string): void;
@@ -117,8 +117,8 @@ export function bip85_get_rsa_entropy(hdkey: Ref_ext_key, key_bits: number, inde
 export function bzero(bytes: Ref, bytes_len: number): void;
 export function cleanup(flags: number): void;
 export function coinselect_assets(values: BigUint64Array|Array<bigint>, target: bigint, attempts: bigint, io_ratio: number): Uint32Array;
-export function confidential_addr_from_addr(address: string, prefix: number, pub_key: Buffer|Uint8Array): string;
-export function confidential_addr_from_addr_segwit(address: string, addr_family: string, confidential_addr_family: string, pub_key: Buffer|Uint8Array): string;
+export function confidential_addr_from_addr(address: string, prefix: number, pub_key: Buffer|Uint8Array|null): string;
+export function confidential_addr_from_addr_segwit(address: string, addr_family: string, confidential_addr_family: string, pub_key: Buffer|Uint8Array|null): string;
 export function confidential_addr_segwit_to_ec_public_key(address: string, confidential_addr_family: string): Buffer;
 export function confidential_addr_to_addr(address: string, prefix: number): string;
 export function confidential_addr_to_addr_segwit(address: string, confidential_addr_family: string, addr_family: string): string;
@@ -142,76 +142,76 @@ export function descriptor_set_network(descriptor: Ref_wally_descriptor, network
 export function descriptor_to_address(descriptor: Ref_wally_descriptor, variant: number, multi_index: number, child_num: number, flags: number): string;
 export function descriptor_to_addresses(descriptor: Ref_wally_descriptor, variant: number, multi_index: number, child_num: number, flags: number, out_len: number): string;
 export function descriptor_to_script_get_maximum_length(descriptor: Ref_wally_descriptor, depth: number, index: number, variant: number, multi_index: number, child_num: number, flags: number): number;
-export function ec_private_key_bip341_tweak(priv_key: Buffer|Uint8Array, merkle_root: Buffer|Uint8Array, flags: number): Buffer;
-export function ec_private_key_verify(priv_key: Buffer|Uint8Array): void;
-export function ec_public_key_bip341_tweak(pub_key: Buffer|Uint8Array, merkle_root: Buffer|Uint8Array, flags: number): Buffer;
-export function ec_public_key_decompress(pub_key: Buffer|Uint8Array): Buffer;
-export function ec_public_key_from_private_key(priv_key: Buffer|Uint8Array): Buffer;
-export function ec_public_key_negate(pub_key: Buffer|Uint8Array): Buffer;
-export function ec_public_key_tweak(pub_key: Buffer|Uint8Array, tweak: Buffer|Uint8Array): Buffer;
-export function ec_public_key_verify(pub_key: Buffer|Uint8Array): void;
-export function ec_scalar_add(scalar: Buffer|Uint8Array, operand: Buffer|Uint8Array): Buffer;
-export function ec_scalar_multiply(scalar: Buffer|Uint8Array, operand: Buffer|Uint8Array): Buffer;
-export function ec_scalar_subtract(scalar: Buffer|Uint8Array, operand: Buffer|Uint8Array): Buffer;
-export function ec_scalar_verify(scalar: Buffer|Uint8Array): void;
-export function ec_sig_from_bytes_aux_len(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, aux_rand: Buffer|Uint8Array, flags: number): number;
-export function ec_sig_from_bytes_len(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): number;
-export function ec_sig_from_der(bytes: Buffer|Uint8Array): Buffer;
-export function ec_sig_normalize(sig: Buffer|Uint8Array): Buffer;
-export function ec_sig_to_der(sig: Buffer|Uint8Array): Buffer;
-export function ec_sig_to_public_key(bytes: Buffer|Uint8Array, sig: Buffer|Uint8Array): Buffer;
-export function ec_sig_verify(pub_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number, sig: Buffer|Uint8Array): void;
-export function ec_xonly_public_key_verify(pub_key: Buffer|Uint8Array): void;
-export function ecdh(pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array): Buffer;
-export function ecdh_nonce_hash(pub_key: Buffer|Uint8Array, priv_key: Buffer|Uint8Array): Buffer;
-export function elements_pegin_contract_script_from_bytes(redeem_script: Buffer|Uint8Array, script: Buffer|Uint8Array, flags: number): Buffer;
-export function elements_pegout_script_from_bytes(genesis_blockhash: Buffer|Uint8Array, mainchain_script: Buffer|Uint8Array, sub_pubkey: Buffer|Uint8Array, whitelistproof: Buffer|Uint8Array, flags: number): Buffer;
+export function ec_private_key_bip341_tweak(priv_key: Buffer|Uint8Array|null, merkle_root: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ec_private_key_verify(priv_key: Buffer|Uint8Array|null): void;
+export function ec_public_key_bip341_tweak(pub_key: Buffer|Uint8Array|null, merkle_root: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ec_public_key_decompress(pub_key: Buffer|Uint8Array|null): Buffer;
+export function ec_public_key_from_private_key(priv_key: Buffer|Uint8Array|null): Buffer;
+export function ec_public_key_negate(pub_key: Buffer|Uint8Array|null): Buffer;
+export function ec_public_key_tweak(pub_key: Buffer|Uint8Array|null, tweak: Buffer|Uint8Array|null): Buffer;
+export function ec_public_key_verify(pub_key: Buffer|Uint8Array|null): void;
+export function ec_scalar_add(scalar: Buffer|Uint8Array|null, operand: Buffer|Uint8Array|null): Buffer;
+export function ec_scalar_multiply(scalar: Buffer|Uint8Array|null, operand: Buffer|Uint8Array|null): Buffer;
+export function ec_scalar_subtract(scalar: Buffer|Uint8Array|null, operand: Buffer|Uint8Array|null): Buffer;
+export function ec_scalar_verify(scalar: Buffer|Uint8Array|null): void;
+export function ec_sig_from_bytes_aux_len(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, aux_rand: Buffer|Uint8Array|null, flags: number): number;
+export function ec_sig_from_bytes_len(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): number;
+export function ec_sig_from_der(bytes: Buffer|Uint8Array|null): Buffer;
+export function ec_sig_normalize(sig: Buffer|Uint8Array|null): Buffer;
+export function ec_sig_to_der(sig: Buffer|Uint8Array|null): Buffer;
+export function ec_sig_to_public_key(bytes: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null): Buffer;
+export function ec_sig_verify(pub_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number, sig: Buffer|Uint8Array|null): void;
+export function ec_xonly_public_key_verify(pub_key: Buffer|Uint8Array|null): void;
+export function ecdh(pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null): Buffer;
+export function ecdh_nonce_hash(pub_key: Buffer|Uint8Array|null, priv_key: Buffer|Uint8Array|null): Buffer;
+export function elements_pegin_contract_script_from_bytes(redeem_script: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null, flags: number): Buffer;
+export function elements_pegout_script_from_bytes(genesis_blockhash: Buffer|Uint8Array|null, mainchain_script: Buffer|Uint8Array|null, sub_pubkey: Buffer|Uint8Array|null, whitelistproof: Buffer|Uint8Array|null, flags: number): Buffer;
 export function elements_pegout_script_size(genesis_blockhash_len: number, mainchain_script_len: number, sub_pubkey_len: number, whitelistproof_len: number): number;
-export function elip150_private_key_to_ec_private_key(bytes: Buffer|Uint8Array, script: Buffer|Uint8Array): Buffer;
-export function elip150_private_key_to_ec_public_key(bytes: Buffer|Uint8Array, script: Buffer|Uint8Array): Buffer;
-export function elip150_public_key_to_ec_public_key(bytes: Buffer|Uint8Array, script: Buffer|Uint8Array): Buffer;
-export function explicit_rangeproof(value: bigint, nonce: Buffer|Uint8Array, vbf: Buffer|Uint8Array, commitment: Buffer|Uint8Array, generator: Buffer|Uint8Array): Buffer;
-export function explicit_rangeproof_verify(rangeproof: Buffer|Uint8Array, value: bigint, commitment: Buffer|Uint8Array, generator: Buffer|Uint8Array): void;
-export function explicit_surjectionproof(output_asset: Buffer|Uint8Array, output_abf: Buffer|Uint8Array, output_generator: Buffer|Uint8Array): Buffer;
-export function explicit_surjectionproof_verify(surjectionproof: Buffer|Uint8Array, output_asset: Buffer|Uint8Array, output_generator: Buffer|Uint8Array): void;
-export function format_bitcoin_message(bytes: Buffer|Uint8Array, flags: number): Buffer;
+export function elip150_private_key_to_ec_private_key(bytes: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null): Buffer;
+export function elip150_private_key_to_ec_public_key(bytes: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null): Buffer;
+export function elip150_public_key_to_ec_public_key(bytes: Buffer|Uint8Array|null, script: Buffer|Uint8Array|null): Buffer;
+export function explicit_rangeproof(value: bigint, nonce: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null, commitment: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): Buffer;
+export function explicit_rangeproof_verify(rangeproof: Buffer|Uint8Array|null, value: bigint, commitment: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): void;
+export function explicit_surjectionproof(output_asset: Buffer|Uint8Array|null, output_abf: Buffer|Uint8Array|null, output_generator: Buffer|Uint8Array|null): Buffer;
+export function explicit_surjectionproof_verify(surjectionproof: Buffer|Uint8Array|null, output_asset: Buffer|Uint8Array|null, output_generator: Buffer|Uint8Array|null): void;
+export function format_bitcoin_message(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
 export function free_string(str: Ref): void;
 export function get_build_version(): number;
-export function get_hash_prevouts(txhashes: Buffer|Uint8Array, utxo_indices: Uint32Array|number[]): Buffer;
+export function get_hash_prevouts(txhashes: Buffer|Uint8Array|null, utxo_indices: Uint32Array|number[]): Buffer;
 export function get_operations(output: Ref_wally_operations): void;
-export function hash160(bytes: Buffer|Uint8Array): Buffer;
-export function hex_from_bytes(bytes: Buffer|Uint8Array): string;
+export function hash160(bytes: Buffer|Uint8Array|null): Buffer;
+export function hex_from_bytes(bytes: Buffer|Uint8Array|null): string;
 export function hex_n_to_bytes(hex: string, hex_len: number): Buffer;
 export function hex_n_verify(hex: string, hex_len: number): void;
 export function hex_to_bytes(hex: string): Buffer;
 export function hex_verify(hex: string): void;
-export function hmac_sha256(key: Buffer|Uint8Array, bytes: Buffer|Uint8Array): Buffer;
-export function hmac_sha512(key: Buffer|Uint8Array, bytes: Buffer|Uint8Array): Buffer;
+export function hmac_sha256(key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null): Buffer;
+export function hmac_sha512(key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null): Buffer;
 export function init(flags: number): void;
 export function is_elements_build(): number;
-export function keypath_bip32_verify(key: Buffer|Uint8Array, val: Buffer|Uint8Array): void;
-export function keypath_get_fingerprint(val: Buffer|Uint8Array): Buffer;
-export function keypath_get_path_len(val: Buffer|Uint8Array): number;
-export function keypath_public_key_verify(key: Buffer|Uint8Array, val: Buffer|Uint8Array): void;
-export function keypath_xonly_public_key_verify(key: Buffer|Uint8Array, val: Buffer|Uint8Array): void;
-export function map_add(map_in: Ref_wally_map, key: Buffer|Uint8Array, value: Buffer|Uint8Array): void;
-export function map_add_integer(map_in: Ref_wally_map, key: number, value: Buffer|Uint8Array): void;
+export function keypath_bip32_verify(key: Buffer|Uint8Array|null, val: Buffer|Uint8Array|null): void;
+export function keypath_get_fingerprint(val: Buffer|Uint8Array|null): Buffer;
+export function keypath_get_path_len(val: Buffer|Uint8Array|null): number;
+export function keypath_public_key_verify(key: Buffer|Uint8Array|null, val: Buffer|Uint8Array|null): void;
+export function keypath_xonly_public_key_verify(key: Buffer|Uint8Array|null, val: Buffer|Uint8Array|null): void;
+export function map_add(map_in: Ref_wally_map, key: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null): void;
+export function map_add_integer(map_in: Ref_wally_map, key: number, value: Buffer|Uint8Array|null): void;
 export function map_assign(map_in: Ref_wally_map, source: Ref_wally_map): void;
 export function map_clear(map_in: Ref_wally_map): void;
 export function map_combine(map_in: Ref_wally_map, source: Ref_wally_map): void;
-export function map_find(map_in: Ref_wally_map, key: Buffer|Uint8Array): number;
+export function map_find(map_in: Ref_wally_map, key: Buffer|Uint8Array|null): number;
 export function map_find_bip32_public_key_from(map_in: Ref_wally_map, index: number, hdkey: Ref_ext_key): number;
-export function map_find_from(map_in: Ref_wally_map, index: number, key: Buffer|Uint8Array): number;
+export function map_find_from(map_in: Ref_wally_map, index: number, key: Buffer|Uint8Array|null): number;
 export function map_find_integer(map_in: Ref_wally_map, key: number): number;
 export function map_free(map_in: Ref_wally_map): void;
 export function map_get_item_integer_key(map_in: Ref_wally_map, index: number): number;
 export function map_get_item_key_length(map_in: Ref_wally_map, index: number): number;
 export function map_get_item_length(map_in: Ref_wally_map, index: number): number;
 export function map_get_num_items(map_in: Ref_wally_map): number;
-export function map_hash_preimage_verify(key: Buffer|Uint8Array, val: Buffer|Uint8Array): void;
+export function map_hash_preimage_verify(key: Buffer|Uint8Array|null, val: Buffer|Uint8Array|null): void;
 export function map_init(allocation_len: number, verify_fn: Ref): Ref_wally_map;
 export function map_init_noalloc(allocation_len: number, verify_fn: Ref, output: Ref_wally_map): void;
-export function map_keypath_add(map_in: Ref_wally_map, pub_key: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function map_keypath_add(map_in: Ref_wally_map, pub_key: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function map_keypath_bip32_init(allocation_len: number): Ref_wally_map;
 export function map_keypath_get_bip32_key_from(map_in: Ref_wally_map, index: number, hdkey: Ref_ext_key): Ref_ext_key;
 export function map_keypath_get_bip32_key_from_noalloc(map_in: Ref_wally_map, index: number, hdkey: Ref_ext_key, output: Ref_ext_key): number;
@@ -219,30 +219,30 @@ export function map_keypath_get_bip32_public_key_from(map_in: Ref_wally_map, ind
 export function map_keypath_get_item_fingerprint(map_in: Ref_wally_map, index: number): Buffer;
 export function map_keypath_get_item_path_len(map_in: Ref_wally_map, index: number): number;
 export function map_keypath_public_key_init(allocation_len: number): Ref_wally_map;
-export function map_merkle_path_add(map_in: Ref_wally_map, pub_key: Buffer|Uint8Array, merkle_hashes: Buffer|Uint8Array): void;
-export function map_preimage_hash160_add(map_in: Ref_wally_map, value: Buffer|Uint8Array): void;
+export function map_merkle_path_add(map_in: Ref_wally_map, pub_key: Buffer|Uint8Array|null, merkle_hashes: Buffer|Uint8Array|null): void;
+export function map_preimage_hash160_add(map_in: Ref_wally_map, value: Buffer|Uint8Array|null): void;
 export function map_preimage_init(allocation_len: number): Ref_wally_map;
-export function map_preimage_ripemd160_add(map_in: Ref_wally_map, value: Buffer|Uint8Array): void;
-export function map_preimage_sha256_add(map_in: Ref_wally_map, value: Buffer|Uint8Array): void;
-export function map_preimage_sha256d_add(map_in: Ref_wally_map, value: Buffer|Uint8Array): void;
-export function map_remove(map_in: Ref_wally_map, key: Buffer|Uint8Array): void;
+export function map_preimage_ripemd160_add(map_in: Ref_wally_map, value: Buffer|Uint8Array|null): void;
+export function map_preimage_sha256_add(map_in: Ref_wally_map, value: Buffer|Uint8Array|null): void;
+export function map_preimage_sha256d_add(map_in: Ref_wally_map, value: Buffer|Uint8Array|null): void;
+export function map_remove(map_in: Ref_wally_map, key: Buffer|Uint8Array|null): void;
 export function map_remove_integer(map_in: Ref_wally_map, key: number): void;
-export function map_replace(map_in: Ref_wally_map, key: Buffer|Uint8Array, value: Buffer|Uint8Array): void;
-export function map_replace_integer(map_in: Ref_wally_map, key: number, value: Buffer|Uint8Array): void;
+export function map_replace(map_in: Ref_wally_map, key: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null): void;
+export function map_replace_integer(map_in: Ref_wally_map, key: number, value: Buffer|Uint8Array|null): void;
 export function map_sort(map_in: Ref_wally_map, flags: number): void;
-export function merkle_path_xonly_public_key_verify(key: Buffer|Uint8Array, val: Buffer|Uint8Array): void;
-export function pbkdf2_hmac_sha256(pass: Buffer|Uint8Array, salt: Buffer|Uint8Array, flags: number, cost: number): Buffer;
-export function pbkdf2_hmac_sha512(pass: Buffer|Uint8Array, salt: Buffer|Uint8Array, flags: number, cost: number): Buffer;
-export function psbt_add_global_scalar(psbt: Ref_wally_psbt, scalar: Buffer|Uint8Array): void;
-export function psbt_add_input_keypath(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
-export function psbt_add_input_signature(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array): void;
-export function psbt_add_input_taproot_keypath(psbt: Ref_wally_psbt, index: number, flags: number, pub_key: Buffer|Uint8Array, tapleaf_hashes: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
-export function psbt_add_output_keypath(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
-export function psbt_add_output_taproot_keypath(psbt: Ref_wally_psbt, index: number, flags: number, pub_key: Buffer|Uint8Array, tapleaf_hashes: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function merkle_path_xonly_public_key_verify(key: Buffer|Uint8Array|null, val: Buffer|Uint8Array|null): void;
+export function pbkdf2_hmac_sha256(pass: Buffer|Uint8Array|null, salt: Buffer|Uint8Array|null, flags: number, cost: number): Buffer;
+export function pbkdf2_hmac_sha512(pass: Buffer|Uint8Array|null, salt: Buffer|Uint8Array|null, flags: number, cost: number): Buffer;
+export function psbt_add_global_scalar(psbt: Ref_wally_psbt, scalar: Buffer|Uint8Array|null): void;
+export function psbt_add_input_keypath(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
+export function psbt_add_input_signature(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null): void;
+export function psbt_add_input_taproot_keypath(psbt: Ref_wally_psbt, index: number, flags: number, pub_key: Buffer|Uint8Array|null, tapleaf_hashes: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
+export function psbt_add_output_keypath(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
+export function psbt_add_output_taproot_keypath(psbt: Ref_wally_psbt, index: number, flags: number, pub_key: Buffer|Uint8Array|null, tapleaf_hashes: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function psbt_add_tx_input_at(psbt: Ref_wally_psbt, index: number, flags: number, input: Ref_wally_tx_input): void;
 export function psbt_add_tx_output_at(psbt: Ref_wally_psbt, index: number, flags: number, output: Ref_wally_tx_output): void;
-export function psbt_blind(psbt: Ref_wally_psbt, values: Ref_wally_map, vbfs: Ref_wally_map, assets: Ref_wally_map, abfs: Ref_wally_map, entropy: Buffer|Uint8Array, output_index: number, flags: number): Ref_wally_map;
-export function psbt_blind_noalloc(psbt: Ref_wally_psbt, values: Ref_wally_map, vbfs: Ref_wally_map, assets: Ref_wally_map, abfs: Ref_wally_map, entropy: Buffer|Uint8Array, output_index: number, flags: number, output: Ref_wally_map): void;
+export function psbt_blind(psbt: Ref_wally_psbt, values: Ref_wally_map, vbfs: Ref_wally_map, assets: Ref_wally_map, abfs: Ref_wally_map, entropy: Buffer|Uint8Array|null, output_index: number, flags: number): Ref_wally_map;
+export function psbt_blind_noalloc(psbt: Ref_wally_psbt, values: Ref_wally_map, vbfs: Ref_wally_map, assets: Ref_wally_map, abfs: Ref_wally_map, entropy: Buffer|Uint8Array|null, output_index: number, flags: number, output: Ref_wally_map): void;
 export function psbt_clear_fallback_locktime(psbt: Ref_wally_psbt): void;
 export function psbt_clear_input_amount(psbt: Ref_wally_psbt, index: number): void;
 export function psbt_clear_input_amount_rangeproof(psbt: Ref_wally_psbt, index: number): void;
@@ -280,19 +280,19 @@ export function psbt_combine_ex(psbt: Ref_wally_psbt, flags: number, source: Ref
 export function psbt_extract(psbt: Ref_wally_psbt, flags: number): Ref_wally_tx;
 export function psbt_finalize(psbt: Ref_wally_psbt, flags: number): void;
 export function psbt_finalize_input(psbt: Ref_wally_psbt, index: number, flags: number): void;
-export function psbt_find_global_scalar(psbt: Ref_wally_psbt, scalar: Buffer|Uint8Array): number;
-export function psbt_find_input_keypath(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array): number;
-export function psbt_find_input_signature(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array): number;
-export function psbt_find_input_spending_utxo(psbt: Ref_wally_psbt, txhash: Buffer|Uint8Array, utxo_index: number): number;
-export function psbt_find_input_unknown(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array): number;
-export function psbt_find_output_keypath(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array): number;
-export function psbt_find_output_unknown(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array): number;
+export function psbt_find_global_scalar(psbt: Ref_wally_psbt, scalar: Buffer|Uint8Array|null): number;
+export function psbt_find_input_keypath(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array|null): number;
+export function psbt_find_input_signature(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null): number;
+export function psbt_find_input_spending_utxo(psbt: Ref_wally_psbt, txhash: Buffer|Uint8Array|null, utxo_index: number): number;
+export function psbt_find_input_unknown(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array|null): number;
+export function psbt_find_output_keypath(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array|null): number;
+export function psbt_find_output_unknown(psbt: Ref_wally_psbt, index: number, key: Buffer|Uint8Array|null): number;
 export function psbt_free(psbt: Ref_wally_psbt): void;
 export function psbt_from_base64(str_in: string, flags: number): Ref_wally_psbt;
 export function psbt_from_base64_n(str_in: string, str_len: number, flags: number): Ref_wally_psbt;
-export function psbt_from_bytes(bytes: Buffer|Uint8Array, flags: number): Ref_wally_psbt;
+export function psbt_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Ref_wally_psbt;
 export function psbt_from_tx(tx: Ref_wally_tx, version: number, flags: number): Ref_wally_psbt;
-export function psbt_generate_input_explicit_proofs(psbt: Ref_wally_psbt, index: number, satoshi: bigint, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array, entropy: Buffer|Uint8Array): void;
+export function psbt_generate_input_explicit_proofs(psbt: Ref_wally_psbt, index: number, satoshi: bigint, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null): void;
 export function psbt_get_fallback_locktime(psbt: Ref_wally_psbt): number;
 export function psbt_get_global_genesis_blockhash(psbt: Ref_wally_psbt): Buffer;
 export function psbt_get_global_scalar(psbt: Ref_wally_psbt, index: number): Buffer;
@@ -329,10 +329,10 @@ export function psbt_get_input_previous_txid(psbt: Ref_wally_psbt, index: number
 export function psbt_get_input_redeem_script_len(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_get_input_required_lockheight(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_get_input_required_locktime(psbt: Ref_wally_psbt, index: number): number;
-export function psbt_get_input_scriptcode_len(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): number;
+export function psbt_get_input_scriptcode_len(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): number;
 export function psbt_get_input_sequence(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_get_input_sighash(psbt: Ref_wally_psbt, index: number): number;
-export function psbt_get_input_signature_hash(psbt: Ref_wally_psbt, index: number, tx: Ref_wally_tx, script: Buffer|Uint8Array, flags: number): Buffer;
+export function psbt_get_input_signature_hash(psbt: Ref_wally_psbt, index: number, tx: Ref_wally_tx, script: Buffer|Uint8Array|null, flags: number): Buffer;
 export function psbt_get_input_signature_len(psbt: Ref_wally_psbt, index: number, subindex: number): number;
 export function psbt_get_input_signature_type(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_get_input_signatures_size(psbt: Ref_wally_psbt, index: number): number;
@@ -380,7 +380,7 @@ export function psbt_has_input_required_locktime(psbt: Ref_wally_psbt, index: nu
 export function psbt_has_output_amount(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_has_output_blinder_index(psbt: Ref_wally_psbt, index: number): number;
 export function psbt_init(version: number, inputs_allocation_len: number, outputs_allocation_len: number, global_unknowns_allocation_len: number, flags: number): Ref_wally_psbt;
-export function psbt_input_add_signature(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array): void;
+export function psbt_input_add_signature(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null): void;
 export function psbt_input_clear_amount_rangeproof(input: Ref_wally_psbt_input): void;
 export function psbt_input_clear_asset(input: Ref_wally_psbt_input): void;
 export function psbt_input_clear_asset_surjectionproof(input: Ref_wally_psbt_input): void;
@@ -399,10 +399,10 @@ export function psbt_input_clear_required_lockheight(input: Ref_wally_psbt_input
 export function psbt_input_clear_required_locktime(input: Ref_wally_psbt_input): void;
 export function psbt_input_clear_sequence(input: Ref_wally_psbt_input): void;
 export function psbt_input_clear_utxo_rangeproof(input: Ref_wally_psbt_input): void;
-export function psbt_input_find_keypath(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array): number;
-export function psbt_input_find_signature(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array): number;
-export function psbt_input_find_unknown(input: Ref_wally_psbt_input, key: Buffer|Uint8Array): number;
-export function psbt_input_generate_explicit_proofs(input: Ref_wally_psbt_input, satoshi: bigint, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, vbf: Buffer|Uint8Array, entropy: Buffer|Uint8Array): void;
+export function psbt_input_find_keypath(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null): number;
+export function psbt_input_find_signature(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null): number;
+export function psbt_input_find_unknown(input: Ref_wally_psbt_input, key: Buffer|Uint8Array|null): number;
+export function psbt_input_generate_explicit_proofs(input: Ref_wally_psbt_input, satoshi: bigint, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, vbf: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null): void;
 export function psbt_input_get_amount_rangeproof_len(input: Ref_wally_psbt_input): number;
 export function psbt_input_get_asset_len(input: Ref_wally_psbt_input): number;
 export function psbt_input_get_asset_surjectionproof_len(input: Ref_wally_psbt_input): number;
@@ -419,47 +419,47 @@ export function psbt_input_get_pegin_genesis_blockhash_len(input: Ref_wally_psbt
 export function psbt_input_get_pegin_txout_proof_len(input: Ref_wally_psbt_input): number;
 export function psbt_input_get_utxo_rangeproof_len(input: Ref_wally_psbt_input): number;
 export function psbt_input_is_finalized(input: Ref_wally_psbt_input): number;
-export function psbt_input_keypath_add(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function psbt_input_keypath_add(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function psbt_input_set_amount(input: Ref_wally_psbt_input, amount: bigint): void;
-export function psbt_input_set_amount_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
-export function psbt_input_set_asset(input: Ref_wally_psbt_input, asset: Buffer|Uint8Array): void;
-export function psbt_input_set_asset_surjectionproof(input: Ref_wally_psbt_input, surjectionproof: Buffer|Uint8Array): void;
-export function psbt_input_set_final_scriptsig(input: Ref_wally_psbt_input, final_scriptsig: Buffer|Uint8Array): void;
+export function psbt_input_set_amount_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_asset(input: Ref_wally_psbt_input, asset: Buffer|Uint8Array|null): void;
+export function psbt_input_set_asset_surjectionproof(input: Ref_wally_psbt_input, surjectionproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_final_scriptsig(input: Ref_wally_psbt_input, final_scriptsig: Buffer|Uint8Array|null): void;
 export function psbt_input_set_final_witness(input: Ref_wally_psbt_input, witness: Ref_wally_tx_witness_stack): void;
 export function psbt_input_set_inflation_keys(input: Ref_wally_psbt_input, value: bigint): void;
-export function psbt_input_set_inflation_keys_blinding_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
-export function psbt_input_set_inflation_keys_commitment(input: Ref_wally_psbt_input, commitment: Buffer|Uint8Array): void;
-export function psbt_input_set_inflation_keys_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
+export function psbt_input_set_inflation_keys_blinding_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_inflation_keys_commitment(input: Ref_wally_psbt_input, commitment: Buffer|Uint8Array|null): void;
+export function psbt_input_set_inflation_keys_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
 export function psbt_input_set_issuance_amount(input: Ref_wally_psbt_input, amount: bigint): void;
-export function psbt_input_set_issuance_amount_blinding_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
-export function psbt_input_set_issuance_amount_commitment(input: Ref_wally_psbt_input, commitment: Buffer|Uint8Array): void;
-export function psbt_input_set_issuance_amount_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
-export function psbt_input_set_issuance_asset_entropy(input: Ref_wally_psbt_input, entropy: Buffer|Uint8Array): void;
-export function psbt_input_set_issuance_blinding_nonce(input: Ref_wally_psbt_input, nonce: Buffer|Uint8Array): void;
+export function psbt_input_set_issuance_amount_blinding_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_issuance_amount_commitment(input: Ref_wally_psbt_input, commitment: Buffer|Uint8Array|null): void;
+export function psbt_input_set_issuance_amount_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_issuance_asset_entropy(input: Ref_wally_psbt_input, entropy: Buffer|Uint8Array|null): void;
+export function psbt_input_set_issuance_blinding_nonce(input: Ref_wally_psbt_input, nonce: Buffer|Uint8Array|null): void;
 export function psbt_input_set_keypaths(input: Ref_wally_psbt_input, map_in: Ref_wally_map): void;
 export function psbt_input_set_output_index(input: Ref_wally_psbt_input, index: number): void;
 export function psbt_input_set_pegin_amount(input: Ref_wally_psbt_input, amount: bigint): void;
-export function psbt_input_set_pegin_claim_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array): void;
-export function psbt_input_set_pegin_genesis_blockhash(input: Ref_wally_psbt_input, genesis_blockhash: Buffer|Uint8Array): void;
+export function psbt_input_set_pegin_claim_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array|null): void;
+export function psbt_input_set_pegin_genesis_blockhash(input: Ref_wally_psbt_input, genesis_blockhash: Buffer|Uint8Array|null): void;
 export function psbt_input_set_pegin_tx(input: Ref_wally_psbt_input, tx: Ref_wally_tx): void;
-export function psbt_input_set_pegin_txout_proof(input: Ref_wally_psbt_input, txout_proof: Buffer|Uint8Array): void;
+export function psbt_input_set_pegin_txout_proof(input: Ref_wally_psbt_input, txout_proof: Buffer|Uint8Array|null): void;
 export function psbt_input_set_pegin_witness(input: Ref_wally_psbt_input, witness: Ref_wally_tx_witness_stack): void;
-export function psbt_input_set_previous_txid(input: Ref_wally_psbt_input, txhash: Buffer|Uint8Array): void;
-export function psbt_input_set_redeem_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array): void;
+export function psbt_input_set_previous_txid(input: Ref_wally_psbt_input, txhash: Buffer|Uint8Array|null): void;
+export function psbt_input_set_redeem_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array|null): void;
 export function psbt_input_set_required_lockheight(input: Ref_wally_psbt_input, required_lockheight: number): void;
 export function psbt_input_set_required_locktime(input: Ref_wally_psbt_input, required_locktime: number): void;
 export function psbt_input_set_sequence(input: Ref_wally_psbt_input, sequence: number): void;
 export function psbt_input_set_sighash(input: Ref_wally_psbt_input, sighash: number): void;
 export function psbt_input_set_signatures(input: Ref_wally_psbt_input, map_in: Ref_wally_map): void;
-export function psbt_input_set_taproot_internal_key(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array): void;
-export function psbt_input_set_taproot_signature(input: Ref_wally_psbt_input, tap_sig: Buffer|Uint8Array): void;
+export function psbt_input_set_taproot_internal_key(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null): void;
+export function psbt_input_set_taproot_signature(input: Ref_wally_psbt_input, tap_sig: Buffer|Uint8Array|null): void;
 export function psbt_input_set_unknowns(input: Ref_wally_psbt_input, map_in: Ref_wally_map): void;
 export function psbt_input_set_utxo(input: Ref_wally_psbt_input, utxo: Ref_wally_tx): void;
-export function psbt_input_set_utxo_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array): void;
-export function psbt_input_set_witness_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array): void;
+export function psbt_input_set_utxo_rangeproof(input: Ref_wally_psbt_input, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_input_set_witness_script(input: Ref_wally_psbt_input, script: Buffer|Uint8Array|null): void;
 export function psbt_input_set_witness_utxo(input: Ref_wally_psbt_input, witness_utxo: Ref_wally_tx_output): void;
 export function psbt_input_set_witness_utxo_from_tx(input: Ref_wally_psbt_input, utxo: Ref_wally_tx, index: number): void;
-export function psbt_input_taproot_keypath_add(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array, tapleaf_hashes: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function psbt_input_taproot_keypath_add(input: Ref_wally_psbt_input, pub_key: Buffer|Uint8Array|null, tapleaf_hashes: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function psbt_is_elements(psbt: Ref_wally_psbt): number;
 export function psbt_is_finalized(psbt: Ref_wally_psbt): number;
 export function psbt_is_input_finalized(psbt: Ref_wally_psbt, index: number): number;
@@ -474,8 +474,8 @@ export function psbt_output_clear_ecdh_public_key(output: Ref_wally_psbt_output)
 export function psbt_output_clear_value_blinding_rangeproof(output: Ref_wally_psbt_output): void;
 export function psbt_output_clear_value_commitment(output: Ref_wally_psbt_output): void;
 export function psbt_output_clear_value_rangeproof(output: Ref_wally_psbt_output): void;
-export function psbt_output_find_keypath(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array): number;
-export function psbt_output_find_unknown(output: Ref_wally_psbt_output, key: Buffer|Uint8Array): number;
+export function psbt_output_find_keypath(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null): number;
+export function psbt_output_find_unknown(output: Ref_wally_psbt_output, key: Buffer|Uint8Array|null): number;
 export function psbt_output_get_asset_blinding_surjectionproof_len(output: Ref_wally_psbt_output): number;
 export function psbt_output_get_asset_commitment_len(output: Ref_wally_psbt_output): number;
 export function psbt_output_get_asset_len(output: Ref_wally_psbt_output): number;
@@ -486,153 +486,153 @@ export function psbt_output_get_ecdh_public_key_len(output: Ref_wally_psbt_outpu
 export function psbt_output_get_value_blinding_rangeproof_len(output: Ref_wally_psbt_output): number;
 export function psbt_output_get_value_commitment_len(output: Ref_wally_psbt_output): number;
 export function psbt_output_get_value_rangeproof_len(output: Ref_wally_psbt_output): number;
-export function psbt_output_keypath_add(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function psbt_output_keypath_add(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function psbt_output_set_amount(output: Ref_wally_psbt_output, amount: bigint): void;
-export function psbt_output_set_asset(output: Ref_wally_psbt_output, asset: Buffer|Uint8Array): void;
-export function psbt_output_set_asset_blinding_surjectionproof(output: Ref_wally_psbt_output, surjectionproof: Buffer|Uint8Array): void;
-export function psbt_output_set_asset_commitment(output: Ref_wally_psbt_output, commitment: Buffer|Uint8Array): void;
-export function psbt_output_set_asset_surjectionproof(output: Ref_wally_psbt_output, surjectionproof: Buffer|Uint8Array): void;
+export function psbt_output_set_asset(output: Ref_wally_psbt_output, asset: Buffer|Uint8Array|null): void;
+export function psbt_output_set_asset_blinding_surjectionproof(output: Ref_wally_psbt_output, surjectionproof: Buffer|Uint8Array|null): void;
+export function psbt_output_set_asset_commitment(output: Ref_wally_psbt_output, commitment: Buffer|Uint8Array|null): void;
+export function psbt_output_set_asset_surjectionproof(output: Ref_wally_psbt_output, surjectionproof: Buffer|Uint8Array|null): void;
 export function psbt_output_set_blinder_index(output: Ref_wally_psbt_output, index: number): void;
-export function psbt_output_set_blinding_public_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array): void;
-export function psbt_output_set_ecdh_public_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array): void;
+export function psbt_output_set_blinding_public_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null): void;
+export function psbt_output_set_ecdh_public_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null): void;
 export function psbt_output_set_keypaths(output: Ref_wally_psbt_output, map_in: Ref_wally_map): void;
-export function psbt_output_set_redeem_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array): void;
-export function psbt_output_set_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array): void;
-export function psbt_output_set_taproot_internal_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array): void;
+export function psbt_output_set_redeem_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array|null): void;
+export function psbt_output_set_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array|null): void;
+export function psbt_output_set_taproot_internal_key(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null): void;
 export function psbt_output_set_unknowns(output: Ref_wally_psbt_output, map_in: Ref_wally_map): void;
-export function psbt_output_set_value_blinding_rangeproof(output: Ref_wally_psbt_output, rangeproof: Buffer|Uint8Array): void;
-export function psbt_output_set_value_commitment(output: Ref_wally_psbt_output, commitment: Buffer|Uint8Array): void;
-export function psbt_output_set_value_rangeproof(output: Ref_wally_psbt_output, rangeproof: Buffer|Uint8Array): void;
-export function psbt_output_set_witness_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array): void;
-export function psbt_output_taproot_keypath_add(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array, tapleaf_hashes: Buffer|Uint8Array, fingerprint: Buffer|Uint8Array, child_path: Uint32Array|number[]): void;
+export function psbt_output_set_value_blinding_rangeproof(output: Ref_wally_psbt_output, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_output_set_value_commitment(output: Ref_wally_psbt_output, commitment: Buffer|Uint8Array|null): void;
+export function psbt_output_set_value_rangeproof(output: Ref_wally_psbt_output, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_output_set_witness_script(output: Ref_wally_psbt_output, script: Buffer|Uint8Array|null): void;
+export function psbt_output_taproot_keypath_add(output: Ref_wally_psbt_output, pub_key: Buffer|Uint8Array|null, tapleaf_hashes: Buffer|Uint8Array|null, fingerprint: Buffer|Uint8Array|null, child_path: Uint32Array|number[]): void;
 export function psbt_remove_input(psbt: Ref_wally_psbt, index: number): void;
 export function psbt_remove_output(psbt: Ref_wally_psbt, index: number): void;
 export function psbt_set_fallback_locktime(psbt: Ref_wally_psbt, locktime: number): void;
-export function psbt_set_global_genesis_blockhash(psbt: Ref_wally_psbt, genesis_blockhash: Buffer|Uint8Array): void;
+export function psbt_set_global_genesis_blockhash(psbt: Ref_wally_psbt, genesis_blockhash: Buffer|Uint8Array|null): void;
 export function psbt_set_global_scalars(psbt: Ref_wally_psbt, map_in: Ref_wally_map): void;
 export function psbt_set_global_tx(psbt: Ref_wally_psbt, tx: Ref_wally_tx): void;
 export function psbt_set_input_amount(psbt: Ref_wally_psbt, index: number, amount: bigint): void;
-export function psbt_set_input_amount_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_input_asset(psbt: Ref_wally_psbt, index: number, asset: Buffer|Uint8Array): void;
-export function psbt_set_input_asset_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array): void;
-export function psbt_set_input_final_scriptsig(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
+export function psbt_set_input_amount_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_asset(psbt: Ref_wally_psbt, index: number, asset: Buffer|Uint8Array|null): void;
+export function psbt_set_input_asset_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_final_scriptsig(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
 export function psbt_set_input_final_witness(psbt: Ref_wally_psbt, index: number, final_witness: Ref_wally_tx_witness_stack): void;
 export function psbt_set_input_inflation_keys(psbt: Ref_wally_psbt, index: number, amount: bigint): void;
-export function psbt_set_input_inflation_keys_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_input_inflation_keys_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array): void;
-export function psbt_set_input_inflation_keys_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
+export function psbt_set_input_inflation_keys_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_inflation_keys_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array|null): void;
+export function psbt_set_input_inflation_keys_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
 export function psbt_set_input_issuance_amount(psbt: Ref_wally_psbt, index: number, amount: bigint): void;
-export function psbt_set_input_issuance_amount_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_input_issuance_amount_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array): void;
-export function psbt_set_input_issuance_amount_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_input_issuance_asset_entropy(psbt: Ref_wally_psbt, index: number, entropy: Buffer|Uint8Array): void;
-export function psbt_set_input_issuance_blinding_nonce(psbt: Ref_wally_psbt, index: number, nonce: Buffer|Uint8Array): void;
+export function psbt_set_input_issuance_amount_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_issuance_amount_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array|null): void;
+export function psbt_set_input_issuance_amount_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_issuance_asset_entropy(psbt: Ref_wally_psbt, index: number, entropy: Buffer|Uint8Array|null): void;
+export function psbt_set_input_issuance_blinding_nonce(psbt: Ref_wally_psbt, index: number, nonce: Buffer|Uint8Array|null): void;
 export function psbt_set_input_keypaths(psbt: Ref_wally_psbt, index: number, map_in: Ref_wally_map): void;
 export function psbt_set_input_output_index(psbt: Ref_wally_psbt, index: number, output_index: number): void;
 export function psbt_set_input_pegin_amount(psbt: Ref_wally_psbt, index: number, amount: bigint): void;
-export function psbt_set_input_pegin_claim_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
-export function psbt_set_input_pegin_genesis_blockhash(psbt: Ref_wally_psbt, index: number, genesis_blockhash: Buffer|Uint8Array): void;
-export function psbt_set_input_pegin_txout_proof(psbt: Ref_wally_psbt, index: number, txout_proof: Buffer|Uint8Array): void;
-export function psbt_set_input_previous_txid(psbt: Ref_wally_psbt, index: number, txhash: Buffer|Uint8Array): void;
-export function psbt_set_input_redeem_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
+export function psbt_set_input_pegin_claim_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
+export function psbt_set_input_pegin_genesis_blockhash(psbt: Ref_wally_psbt, index: number, genesis_blockhash: Buffer|Uint8Array|null): void;
+export function psbt_set_input_pegin_txout_proof(psbt: Ref_wally_psbt, index: number, txout_proof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_previous_txid(psbt: Ref_wally_psbt, index: number, txhash: Buffer|Uint8Array|null): void;
+export function psbt_set_input_redeem_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
 export function psbt_set_input_required_lockheight(psbt: Ref_wally_psbt, index: number, lockheight: number): void;
 export function psbt_set_input_required_locktime(psbt: Ref_wally_psbt, index: number, locktime: number): void;
 export function psbt_set_input_sequence(psbt: Ref_wally_psbt, index: number, sequence: number): void;
 export function psbt_set_input_sighash(psbt: Ref_wally_psbt, index: number, sighash: number): void;
 export function psbt_set_input_signatures(psbt: Ref_wally_psbt, index: number, map_in: Ref_wally_map): void;
-export function psbt_set_input_taproot_internal_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array): void;
-export function psbt_set_input_taproot_signature(psbt: Ref_wally_psbt, index: number, sig: Buffer|Uint8Array): void;
+export function psbt_set_input_taproot_internal_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null): void;
+export function psbt_set_input_taproot_signature(psbt: Ref_wally_psbt, index: number, sig: Buffer|Uint8Array|null): void;
 export function psbt_set_input_unknowns(psbt: Ref_wally_psbt, index: number, map_in: Ref_wally_map): void;
 export function psbt_set_input_utxo(psbt: Ref_wally_psbt, index: number, utxo: Ref_wally_tx): void;
-export function psbt_set_input_utxo_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_input_witness_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
+export function psbt_set_input_utxo_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_input_witness_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
 export function psbt_set_input_witness_utxo(psbt: Ref_wally_psbt, index: number, witness_utxo: Ref_wally_tx_output): void;
 export function psbt_set_input_witness_utxo_from_tx(psbt: Ref_wally_psbt, index: number, utxo: Ref_wally_tx, utxo_index: number): void;
 export function psbt_set_output_amount(psbt: Ref_wally_psbt, index: number, amount: bigint): void;
-export function psbt_set_output_asset(psbt: Ref_wally_psbt, index: number, asset: Buffer|Uint8Array): void;
-export function psbt_set_output_asset_blinding_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array): void;
-export function psbt_set_output_asset_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array): void;
-export function psbt_set_output_asset_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array): void;
+export function psbt_set_output_asset(psbt: Ref_wally_psbt, index: number, asset: Buffer|Uint8Array|null): void;
+export function psbt_set_output_asset_blinding_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array|null): void;
+export function psbt_set_output_asset_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array|null): void;
+export function psbt_set_output_asset_surjectionproof(psbt: Ref_wally_psbt, index: number, surjectionproof: Buffer|Uint8Array|null): void;
 export function psbt_set_output_blinder_index(psbt: Ref_wally_psbt, index: number, idx: number): void;
-export function psbt_set_output_blinding_public_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array): void;
-export function psbt_set_output_ecdh_public_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array): void;
+export function psbt_set_output_blinding_public_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null): void;
+export function psbt_set_output_ecdh_public_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null): void;
 export function psbt_set_output_keypaths(psbt: Ref_wally_psbt, index: number, map_in: Ref_wally_map): void;
-export function psbt_set_output_redeem_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
-export function psbt_set_output_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
-export function psbt_set_output_taproot_internal_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array): void;
+export function psbt_set_output_redeem_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
+export function psbt_set_output_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
+export function psbt_set_output_taproot_internal_key(psbt: Ref_wally_psbt, index: number, pub_key: Buffer|Uint8Array|null): void;
 export function psbt_set_output_unknowns(psbt: Ref_wally_psbt, index: number, map_in: Ref_wally_map): void;
-export function psbt_set_output_value_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_output_value_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array): void;
-export function psbt_set_output_value_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array): void;
-export function psbt_set_output_witness_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): void;
+export function psbt_set_output_value_blinding_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_output_value_commitment(psbt: Ref_wally_psbt, index: number, commitment: Buffer|Uint8Array|null): void;
+export function psbt_set_output_value_rangeproof(psbt: Ref_wally_psbt, index: number, rangeproof: Buffer|Uint8Array|null): void;
+export function psbt_set_output_witness_script(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): void;
 export function psbt_set_pset_modifiable_flags(psbt: Ref_wally_psbt, flags: number): void;
 export function psbt_set_tx_modifiable_flags(psbt: Ref_wally_psbt, flags: number): void;
 export function psbt_set_tx_version(psbt: Ref_wally_psbt, version: number): void;
 export function psbt_set_version(psbt: Ref_wally_psbt, flags: number, version: number): void;
-export function psbt_sign(psbt: Ref_wally_psbt, key: Buffer|Uint8Array, flags: number): void;
+export function psbt_sign(psbt: Ref_wally_psbt, key: Buffer|Uint8Array|null, flags: number): void;
 export function psbt_sign_bip32(psbt: Ref_wally_psbt, hdkey: Ref_ext_key, flags: number): void;
-export function psbt_sign_input_bip32(psbt: Ref_wally_psbt, index: number, subindex: number, txhash: Buffer|Uint8Array, hdkey: Ref_ext_key, flags: number): void;
+export function psbt_sign_input_bip32(psbt: Ref_wally_psbt, index: number, subindex: number, txhash: Buffer|Uint8Array|null, hdkey: Ref_ext_key, flags: number): void;
 export function psbt_signing_cache_disable(psbt: Ref_wally_psbt): void;
 export function psbt_signing_cache_enable(psbt: Ref_wally_psbt, flags: number): void;
 export function psbt_to_base64(psbt: Ref_wally_psbt, flags: number): string;
-export function ripemd160(bytes: Buffer|Uint8Array): Buffer;
-export function s2c_commitment_verify(sig: Buffer|Uint8Array, s2c_data: Buffer|Uint8Array, s2c_opening: Buffer|Uint8Array, flags: number): void;
-export function s2c_sig_from_bytes(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, s2c_data: Buffer|Uint8Array, flags: number): [s2c_opening_out: Buffer, bytes_out: Buffer];
-export function script_push_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function scriptpubkey_csv_2of2_then_1_from_bytes(bytes: Buffer|Uint8Array, csv_blocks: number, flags: number): Buffer;
-export function scriptpubkey_csv_2of2_then_1_from_bytes_opt(bytes: Buffer|Uint8Array, csv_blocks: number, flags: number): Buffer;
-export function scriptpubkey_csv_blocks_from_csv_2of2_then_1(bytes: Buffer|Uint8Array): number;
-export function scriptpubkey_get_type(bytes: Buffer|Uint8Array): number;
-export function scriptpubkey_multisig_from_bytes(bytes: Buffer|Uint8Array, threshold: number, flags: number): Buffer;
-export function scriptpubkey_op_return_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function scriptpubkey_p2pkh_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function scriptpubkey_p2sh_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function scriptpubkey_p2tr_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function scriptpubkey_to_address(scriptpubkey: Buffer|Uint8Array, network: number): string;
-export function scriptsig_multisig_from_bytes(script: Buffer|Uint8Array, bytes: Buffer|Uint8Array, sighash: Uint32Array|number[], flags: number): Buffer;
-export function scriptsig_p2pkh_from_der(pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array): Buffer;
-export function scriptsig_p2pkh_from_sig(pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array, sighash: number): Buffer;
-export function scrypt(pass: Buffer|Uint8Array, salt: Buffer|Uint8Array, cost: number, block_size: number, parallelism: number, out_len: number): Buffer;
-export function secp_randomize(bytes: Buffer|Uint8Array): void;
+export function ripemd160(bytes: Buffer|Uint8Array|null): Buffer;
+export function s2c_commitment_verify(sig: Buffer|Uint8Array|null, s2c_data: Buffer|Uint8Array|null, s2c_opening: Buffer|Uint8Array|null, flags: number): void;
+export function s2c_sig_from_bytes(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, s2c_data: Buffer|Uint8Array|null, flags: number): [s2c_opening_out: Buffer, bytes_out: Buffer];
+export function script_push_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function scriptpubkey_csv_2of2_then_1_from_bytes(bytes: Buffer|Uint8Array|null, csv_blocks: number, flags: number): Buffer;
+export function scriptpubkey_csv_2of2_then_1_from_bytes_opt(bytes: Buffer|Uint8Array|null, csv_blocks: number, flags: number): Buffer;
+export function scriptpubkey_csv_blocks_from_csv_2of2_then_1(bytes: Buffer|Uint8Array|null): number;
+export function scriptpubkey_get_type(bytes: Buffer|Uint8Array|null): number;
+export function scriptpubkey_multisig_from_bytes(bytes: Buffer|Uint8Array|null, threshold: number, flags: number): Buffer;
+export function scriptpubkey_op_return_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function scriptpubkey_p2pkh_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function scriptpubkey_p2sh_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function scriptpubkey_p2tr_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function scriptpubkey_to_address(scriptpubkey: Buffer|Uint8Array|null, network: number): string;
+export function scriptsig_multisig_from_bytes(script: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, sighash: Uint32Array|number[], flags: number): Buffer;
+export function scriptsig_p2pkh_from_der(pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null): Buffer;
+export function scriptsig_p2pkh_from_sig(pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null, sighash: number): Buffer;
+export function scrypt(pass: Buffer|Uint8Array|null, salt: Buffer|Uint8Array|null, cost: number, block_size: number, parallelism: number, out_len: number): Buffer;
+export function secp_randomize(bytes: Buffer|Uint8Array|null): void;
 export function set_operations(ops: Ref_wally_operations): void;
-export function sha256(bytes: Buffer|Uint8Array): Buffer;
-export function sha256_midstate(bytes: Buffer|Uint8Array): Buffer;
-export function sha256d(bytes: Buffer|Uint8Array): Buffer;
-export function sha512(bytes: Buffer|Uint8Array): Buffer;
-export function symmetric_key_from_parent(bytes: Buffer|Uint8Array, version: number, label: Buffer|Uint8Array): Buffer;
-export function symmetric_key_from_seed(bytes: Buffer|Uint8Array): Buffer;
-export function tx_add_elements_raw_input(tx: Ref_wally_tx, txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array, entropy: Buffer|Uint8Array, issuance_amount: Buffer|Uint8Array, inflation_keys: Buffer|Uint8Array, issuance_amount_rangeproof: Buffer|Uint8Array, inflation_keys_rangeproof: Buffer|Uint8Array, pegin_witness: Ref_wally_tx_witness_stack, flags: number): void;
-export function tx_add_elements_raw_input_at(tx: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array, entropy: Buffer|Uint8Array, issuance_amount: Buffer|Uint8Array, inflation_keys: Buffer|Uint8Array, issuance_amount_rangeproof: Buffer|Uint8Array, inflation_keys_rangeproof: Buffer|Uint8Array, pegin_witness: Ref_wally_tx_witness_stack, flags: number): void;
-export function tx_add_elements_raw_output(tx: Ref_wally_tx, script: Buffer|Uint8Array, asset: Buffer|Uint8Array, value: Buffer|Uint8Array, nonce: Buffer|Uint8Array, surjectionproof: Buffer|Uint8Array, rangeproof: Buffer|Uint8Array, flags: number): void;
-export function tx_add_elements_raw_output_at(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array, asset: Buffer|Uint8Array, value: Buffer|Uint8Array, nonce: Buffer|Uint8Array, surjectionproof: Buffer|Uint8Array, rangeproof: Buffer|Uint8Array, flags: number): void;
+export function sha256(bytes: Buffer|Uint8Array|null): Buffer;
+export function sha256_midstate(bytes: Buffer|Uint8Array|null): Buffer;
+export function sha256d(bytes: Buffer|Uint8Array|null): Buffer;
+export function sha512(bytes: Buffer|Uint8Array|null): Buffer;
+export function symmetric_key_from_parent(bytes: Buffer|Uint8Array|null, version: number, label: Buffer|Uint8Array|null): Buffer;
+export function symmetric_key_from_seed(bytes: Buffer|Uint8Array|null): Buffer;
+export function tx_add_elements_raw_input(tx: Ref_wally_tx, txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, issuance_amount: Buffer|Uint8Array|null, inflation_keys: Buffer|Uint8Array|null, issuance_amount_rangeproof: Buffer|Uint8Array|null, inflation_keys_rangeproof: Buffer|Uint8Array|null, pegin_witness: Ref_wally_tx_witness_stack, flags: number): void;
+export function tx_add_elements_raw_input_at(tx: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, issuance_amount: Buffer|Uint8Array|null, inflation_keys: Buffer|Uint8Array|null, issuance_amount_rangeproof: Buffer|Uint8Array|null, inflation_keys_rangeproof: Buffer|Uint8Array|null, pegin_witness: Ref_wally_tx_witness_stack, flags: number): void;
+export function tx_add_elements_raw_output(tx: Ref_wally_tx, script: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, nonce: Buffer|Uint8Array|null, surjectionproof: Buffer|Uint8Array|null, rangeproof: Buffer|Uint8Array|null, flags: number): void;
+export function tx_add_elements_raw_output_at(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, nonce: Buffer|Uint8Array|null, surjectionproof: Buffer|Uint8Array|null, rangeproof: Buffer|Uint8Array|null, flags: number): void;
 export function tx_add_input(tx: Ref_wally_tx, input: Ref_wally_tx_input): void;
 export function tx_add_input_at(tx: Ref_wally_tx, index: number, input: Ref_wally_tx_input): void;
 export function tx_add_output(tx: Ref_wally_tx, output: Ref_wally_tx_output): void;
 export function tx_add_output_at(tx: Ref_wally_tx, index: number, output: Ref_wally_tx_output): void;
-export function tx_add_raw_input(tx: Ref_wally_tx, txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack, flags: number): void;
-export function tx_add_raw_input_at(tx: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack, flags: number): void;
-export function tx_add_raw_output(tx: Ref_wally_tx, satoshi: bigint, script: Buffer|Uint8Array, flags: number): void;
-export function tx_add_raw_output_at(tx: Ref_wally_tx, index: number, satoshi: bigint, script: Buffer|Uint8Array, flags: number): void;
+export function tx_add_raw_input(tx: Ref_wally_tx, txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack, flags: number): void;
+export function tx_add_raw_input_at(tx: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack, flags: number): void;
+export function tx_add_raw_output(tx: Ref_wally_tx, satoshi: bigint, script: Buffer|Uint8Array|null, flags: number): void;
+export function tx_add_raw_output_at(tx: Ref_wally_tx, index: number, satoshi: bigint, script: Buffer|Uint8Array|null, flags: number): void;
 export function tx_clone(tx: Ref_wally_tx, flags: number): Ref_wally_tx;
 export function tx_confidential_value_from_satoshi(satoshi: bigint): Buffer;
-export function tx_confidential_value_to_satoshi(value: Buffer|Uint8Array): bigint;
-export function tx_elements_input_init(txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array, entropy: Buffer|Uint8Array, issuance_amount: Buffer|Uint8Array, inflation_keys: Buffer|Uint8Array, issuance_amount_rangeproof: Buffer|Uint8Array, inflation_keys_rangeproof: Buffer|Uint8Array, pegin_witness: Ref_wally_tx_witness_stack): Ref_wally_tx_input;
+export function tx_confidential_value_to_satoshi(value: Buffer|Uint8Array|null): bigint;
+export function tx_elements_input_init(txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack, nonce: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, issuance_amount: Buffer|Uint8Array|null, inflation_keys: Buffer|Uint8Array|null, issuance_amount_rangeproof: Buffer|Uint8Array|null, inflation_keys_rangeproof: Buffer|Uint8Array|null, pegin_witness: Ref_wally_tx_witness_stack): Ref_wally_tx_input;
 export function tx_elements_input_is_pegin(input: Ref_wally_tx_input): number;
 export function tx_elements_input_issuance_free(input: Ref_wally_tx_input): void;
-export function tx_elements_input_issuance_set(input: Ref_wally_tx_input, nonce: Buffer|Uint8Array, entropy: Buffer|Uint8Array, issuance_amount: Buffer|Uint8Array, inflation_keys: Buffer|Uint8Array, issuance_amount_rangeproof: Buffer|Uint8Array, inflation_keys_rangeproof: Buffer|Uint8Array): void;
-export function tx_elements_issuance_calculate_asset(entropy: Buffer|Uint8Array): Buffer;
-export function tx_elements_issuance_calculate_reissuance_token(entropy: Buffer|Uint8Array, flags: number): Buffer;
-export function tx_elements_issuance_generate_entropy(txhash: Buffer|Uint8Array, utxo_index: number, contract_hash: Buffer|Uint8Array): Buffer;
+export function tx_elements_input_issuance_set(input: Ref_wally_tx_input, nonce: Buffer|Uint8Array|null, entropy: Buffer|Uint8Array|null, issuance_amount: Buffer|Uint8Array|null, inflation_keys: Buffer|Uint8Array|null, issuance_amount_rangeproof: Buffer|Uint8Array|null, inflation_keys_rangeproof: Buffer|Uint8Array|null): void;
+export function tx_elements_issuance_calculate_asset(entropy: Buffer|Uint8Array|null): Buffer;
+export function tx_elements_issuance_calculate_reissuance_token(entropy: Buffer|Uint8Array|null, flags: number): Buffer;
+export function tx_elements_issuance_generate_entropy(txhash: Buffer|Uint8Array|null, utxo_index: number, contract_hash: Buffer|Uint8Array|null): Buffer;
 export function tx_elements_output_commitment_free(output: Ref_wally_tx_output): void;
-export function tx_elements_output_commitment_set(output: Ref_wally_tx_output, asset: Buffer|Uint8Array, value: Buffer|Uint8Array, nonce: Buffer|Uint8Array, surjectionproof: Buffer|Uint8Array, rangeproof: Buffer|Uint8Array): void;
-export function tx_elements_output_init(script: Buffer|Uint8Array, asset: Buffer|Uint8Array, value: Buffer|Uint8Array, nonce: Buffer|Uint8Array, surjectionproof: Buffer|Uint8Array, rangeproof: Buffer|Uint8Array): Ref_wally_tx_output;
-export function tx_elements_output_init_noalloc(script: Buffer|Uint8Array, asset: Buffer|Uint8Array, value: Buffer|Uint8Array, nonce: Buffer|Uint8Array, surjectionproof: Buffer|Uint8Array, rangeproof: Buffer|Uint8Array, output: Ref_wally_tx_output): void;
+export function tx_elements_output_commitment_set(output: Ref_wally_tx_output, asset: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, nonce: Buffer|Uint8Array|null, surjectionproof: Buffer|Uint8Array|null, rangeproof: Buffer|Uint8Array|null): void;
+export function tx_elements_output_init(script: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, nonce: Buffer|Uint8Array|null, surjectionproof: Buffer|Uint8Array|null, rangeproof: Buffer|Uint8Array|null): Ref_wally_tx_output;
+export function tx_elements_output_init_noalloc(script: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, nonce: Buffer|Uint8Array|null, surjectionproof: Buffer|Uint8Array|null, rangeproof: Buffer|Uint8Array|null, output: Ref_wally_tx_output): void;
 export function tx_free(tx: Ref_wally_tx): void;
-export function tx_from_bytes(bytes: Buffer|Uint8Array, flags: number): Ref_wally_tx;
+export function tx_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Ref_wally_tx;
 export function tx_from_hex(hex: string, flags: number): Ref_wally_tx;
-export function tx_get_btc_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array, satoshi: bigint, sighash: number, flags: number): Buffer;
-export function tx_get_btc_taproot_signature_hash(tx: Ref_wally_tx, index: number, scripts: Ref_wally_map, values: BigUint64Array|Array<bigint>, tapleaf_script: Buffer|Uint8Array, key_version: number, codesep_position: number, annex: Buffer|Uint8Array, sighash: number, flags: number): Buffer;
-export function tx_get_elements_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array, value: Buffer|Uint8Array, sighash: number, flags: number): Buffer;
+export function tx_get_btc_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null, satoshi: bigint, sighash: number, flags: number): Buffer;
+export function tx_get_btc_taproot_signature_hash(tx: Ref_wally_tx, index: number, scripts: Ref_wally_map, values: BigUint64Array|Array<bigint>, tapleaf_script: Buffer|Uint8Array|null, key_version: number, codesep_position: number, annex: Buffer|Uint8Array|null, sighash: number, flags: number): Buffer;
+export function tx_get_elements_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null, value: Buffer|Uint8Array|null, sighash: number, flags: number): Buffer;
 export function tx_get_elements_weight_discount(tx: Ref_wally_tx, flags: number): number;
 export function tx_get_hash_prevouts(tx: Ref_wally_tx, index: number, num_inputs: number): Buffer;
 export function tx_get_input_blinding_nonce(tx_in: Ref_wally_tx, index: number): Buffer;
@@ -644,7 +644,7 @@ export function tx_get_input_issuance_amount_len(tx_in: Ref_wally_tx, index: num
 export function tx_get_input_issuance_amount_rangeproof_len(tx_in: Ref_wally_tx, index: number): number;
 export function tx_get_input_script_len(tx_in: Ref_wally_tx, index: number): number;
 export function tx_get_input_sequence(tx_in: Ref_wally_tx, index: number): number;
-export function tx_get_input_signature_hash(tx: Ref_wally_tx, index: number, scripts: Ref_wally_map, assets: Ref_wally_map, values: Ref_wally_map, script: Buffer|Uint8Array, key_version: number, codesep_position: number, annex: Buffer|Uint8Array, genesis_blockhash: Buffer|Uint8Array, sighash: number, flags: number, cache: Ref_wally_map): Buffer;
+export function tx_get_input_signature_hash(tx: Ref_wally_tx, index: number, scripts: Ref_wally_map, assets: Ref_wally_map, values: Ref_wally_map, script: Buffer|Uint8Array|null, key_version: number, codesep_position: number, annex: Buffer|Uint8Array|null, genesis_blockhash: Buffer|Uint8Array|null, sighash: number, flags: number, cache: Ref_wally_map): Buffer;
 export function tx_get_input_txhash(tx_in: Ref_wally_tx, index: number): Buffer;
 export function tx_get_input_witness_len(tx_in: Ref_wally_tx, index: number, wit_index: number): number;
 export function tx_get_input_witness_num_items(tx_in: Ref_wally_tx, index: number): number;
@@ -659,7 +659,7 @@ export function tx_get_output_satoshi(tx_in: Ref_wally_tx, index: number): bigin
 export function tx_get_output_script_len(tx_in: Ref_wally_tx, index: number): number;
 export function tx_get_output_surjectionproof_len(tx_in: Ref_wally_tx, index: number): number;
 export function tx_get_output_value_len(tx_in: Ref_wally_tx, index: number): number;
-export function tx_get_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array, extra: Buffer|Uint8Array, extra_offset: number, satoshi: bigint, sighash: number, tx_sighash: number, flags: number): Buffer;
+export function tx_get_signature_hash(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null, extra: Buffer|Uint8Array|null, extra_offset: number, satoshi: bigint, sighash: number, tx_sighash: number, flags: number): Buffer;
 export function tx_get_total_output_satoshi(tx: Ref_wally_tx): bigint;
 export function tx_get_txid(tx: Ref_wally_tx): Buffer;
 export function tx_get_version(tx_in: Ref_wally_tx): number;
@@ -682,17 +682,17 @@ export function tx_input_get_sequence(tx_input_in: Ref_wally_tx_input): number;
 export function tx_input_get_txhash(tx_input_in: Ref_wally_tx_input): Buffer;
 export function tx_input_get_witness_len(tx_input_in: Ref_wally_tx_input, index: number): number;
 export function tx_input_get_witness_num_items(tx_input_in: Ref_wally_tx_input): number;
-export function tx_input_init(txhash: Buffer|Uint8Array, utxo_index: number, sequence: number, script: Buffer|Uint8Array, witness: Ref_wally_tx_witness_stack): Ref_wally_tx_input;
-export function tx_input_set_blinding_nonce(tx_input_in: Ref_wally_tx_input, blinding_nonce: Buffer|Uint8Array): void;
-export function tx_input_set_entropy(tx_input_in: Ref_wally_tx_input, entropy: Buffer|Uint8Array): void;
+export function tx_input_init(txhash: Buffer|Uint8Array|null, utxo_index: number, sequence: number, script: Buffer|Uint8Array|null, witness: Ref_wally_tx_witness_stack): Ref_wally_tx_input;
+export function tx_input_set_blinding_nonce(tx_input_in: Ref_wally_tx_input, blinding_nonce: Buffer|Uint8Array|null): void;
+export function tx_input_set_entropy(tx_input_in: Ref_wally_tx_input, entropy: Buffer|Uint8Array|null): void;
 export function tx_input_set_index(tx_input: Ref_wally_tx_input, index: number): void;
-export function tx_input_set_inflation_keys(tx_input_in: Ref_wally_tx_input, inflation_keys: Buffer|Uint8Array): void;
-export function tx_input_set_inflation_keys_rangeproof(tx_input_in: Ref_wally_tx_input, inflation_keys_rangeproof: Buffer|Uint8Array): void;
-export function tx_input_set_issuance_amount(tx_input_in: Ref_wally_tx_input, issuance_amount: Buffer|Uint8Array): void;
-export function tx_input_set_issuance_amount_rangeproof(tx_input_in: Ref_wally_tx_input, issuance_amount_rangeproof: Buffer|Uint8Array): void;
-export function tx_input_set_script(tx_input: Ref_wally_tx_input, script: Buffer|Uint8Array): void;
+export function tx_input_set_inflation_keys(tx_input_in: Ref_wally_tx_input, inflation_keys: Buffer|Uint8Array|null): void;
+export function tx_input_set_inflation_keys_rangeproof(tx_input_in: Ref_wally_tx_input, inflation_keys_rangeproof: Buffer|Uint8Array|null): void;
+export function tx_input_set_issuance_amount(tx_input_in: Ref_wally_tx_input, issuance_amount: Buffer|Uint8Array|null): void;
+export function tx_input_set_issuance_amount_rangeproof(tx_input_in: Ref_wally_tx_input, issuance_amount_rangeproof: Buffer|Uint8Array|null): void;
+export function tx_input_set_script(tx_input: Ref_wally_tx_input, script: Buffer|Uint8Array|null): void;
 export function tx_input_set_sequence(tx_input: Ref_wally_tx_input, sequence: number): void;
-export function tx_input_set_txhash(tx_input: Ref_wally_tx_input, txhash: Buffer|Uint8Array): void;
+export function tx_input_set_txhash(tx_input: Ref_wally_tx_input, txhash: Buffer|Uint8Array|null): void;
 export function tx_input_set_witness(tx_input: Ref_wally_tx_input, witness: Ref_wally_tx_witness_stack): void;
 export function tx_is_coinbase(tx: Ref_wally_tx): number;
 export function tx_is_elements(tx: Ref_wally_tx): number;
@@ -706,65 +706,65 @@ export function tx_output_get_satoshi(tx_output_in: Ref_wally_tx_output): bigint
 export function tx_output_get_script_len(tx_output_in: Ref_wally_tx_output): number;
 export function tx_output_get_surjectionproof_len(tx_output_in: Ref_wally_tx_output): number;
 export function tx_output_get_value_len(tx_output_in: Ref_wally_tx_output): number;
-export function tx_output_init(satoshi: bigint, script: Buffer|Uint8Array): Ref_wally_tx_output;
-export function tx_output_init_noalloc(satoshi: bigint, script: Buffer|Uint8Array, output: Ref_wally_tx_output): void;
-export function tx_output_set_asset(tx_output_in: Ref_wally_tx_output, asset: Buffer|Uint8Array): void;
-export function tx_output_set_nonce(tx_output_in: Ref_wally_tx_output, nonce: Buffer|Uint8Array): void;
-export function tx_output_set_rangeproof(tx_output_in: Ref_wally_tx_output, rangeproof: Buffer|Uint8Array): void;
+export function tx_output_init(satoshi: bigint, script: Buffer|Uint8Array|null): Ref_wally_tx_output;
+export function tx_output_init_noalloc(satoshi: bigint, script: Buffer|Uint8Array|null, output: Ref_wally_tx_output): void;
+export function tx_output_set_asset(tx_output_in: Ref_wally_tx_output, asset: Buffer|Uint8Array|null): void;
+export function tx_output_set_nonce(tx_output_in: Ref_wally_tx_output, nonce: Buffer|Uint8Array|null): void;
+export function tx_output_set_rangeproof(tx_output_in: Ref_wally_tx_output, rangeproof: Buffer|Uint8Array|null): void;
 export function tx_output_set_satoshi(tx_output_in: Ref_wally_tx_output, satoshi: bigint): void;
-export function tx_output_set_script(tx_output_in: Ref_wally_tx_output, script: Buffer|Uint8Array): void;
-export function tx_output_set_surjectionproof(tx_output_in: Ref_wally_tx_output, surjectionproof: Buffer|Uint8Array): void;
-export function tx_output_set_value(tx_output_in: Ref_wally_tx_output, value: Buffer|Uint8Array): void;
+export function tx_output_set_script(tx_output_in: Ref_wally_tx_output, script: Buffer|Uint8Array|null): void;
+export function tx_output_set_surjectionproof(tx_output_in: Ref_wally_tx_output, surjectionproof: Buffer|Uint8Array|null): void;
+export function tx_output_set_value(tx_output_in: Ref_wally_tx_output, value: Buffer|Uint8Array|null): void;
 export function tx_remove_input(tx: Ref_wally_tx, index: number): void;
 export function tx_remove_output(tx: Ref_wally_tx, index: number): void;
-export function tx_set_input_blinding_nonce(tx_in: Ref_wally_tx, index: number, blinding_nonce: Buffer|Uint8Array): void;
-export function tx_set_input_entropy(tx_in: Ref_wally_tx, index: number, entropy: Buffer|Uint8Array): void;
+export function tx_set_input_blinding_nonce(tx_in: Ref_wally_tx, index: number, blinding_nonce: Buffer|Uint8Array|null): void;
+export function tx_set_input_entropy(tx_in: Ref_wally_tx, index: number, entropy: Buffer|Uint8Array|null): void;
 export function tx_set_input_index(tx_in: Ref_wally_tx, index: number, index_in: number): void;
-export function tx_set_input_inflation_keys(tx_in: Ref_wally_tx, index: number, inflation_keys: Buffer|Uint8Array): void;
-export function tx_set_input_inflation_keys_rangeproof(tx_in: Ref_wally_tx, index: number, inflation_keys_rangeproof: Buffer|Uint8Array): void;
-export function tx_set_input_issuance_amount(tx_in: Ref_wally_tx, index: number, issuance_amount: Buffer|Uint8Array): void;
-export function tx_set_input_issuance_amount_rangeproof(tx_in: Ref_wally_tx, index: number, issuance_amount_rangeproof: Buffer|Uint8Array): void;
-export function tx_set_input_script(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array): void;
+export function tx_set_input_inflation_keys(tx_in: Ref_wally_tx, index: number, inflation_keys: Buffer|Uint8Array|null): void;
+export function tx_set_input_inflation_keys_rangeproof(tx_in: Ref_wally_tx, index: number, inflation_keys_rangeproof: Buffer|Uint8Array|null): void;
+export function tx_set_input_issuance_amount(tx_in: Ref_wally_tx, index: number, issuance_amount: Buffer|Uint8Array|null): void;
+export function tx_set_input_issuance_amount_rangeproof(tx_in: Ref_wally_tx, index: number, issuance_amount_rangeproof: Buffer|Uint8Array|null): void;
+export function tx_set_input_script(tx: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null): void;
 export function tx_set_input_sequence(tx_in: Ref_wally_tx, index: number, sequence: number): void;
-export function tx_set_input_txhash(tx_in: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array): void;
+export function tx_set_input_txhash(tx_in: Ref_wally_tx, index: number, txhash: Buffer|Uint8Array|null): void;
 export function tx_set_input_witness(tx: Ref_wally_tx, index: number, stack: Ref_wally_tx_witness_stack): void;
-export function tx_set_output_asset(tx_in: Ref_wally_tx, index: number, asset: Buffer|Uint8Array): void;
-export function tx_set_output_nonce(tx_in: Ref_wally_tx, index: number, nonce: Buffer|Uint8Array): void;
-export function tx_set_output_rangeproof(tx_in: Ref_wally_tx, index: number, rangeproof: Buffer|Uint8Array): void;
+export function tx_set_output_asset(tx_in: Ref_wally_tx, index: number, asset: Buffer|Uint8Array|null): void;
+export function tx_set_output_nonce(tx_in: Ref_wally_tx, index: number, nonce: Buffer|Uint8Array|null): void;
+export function tx_set_output_rangeproof(tx_in: Ref_wally_tx, index: number, rangeproof: Buffer|Uint8Array|null): void;
 export function tx_set_output_satoshi(tx_in: Ref_wally_tx, index: number, satoshi: bigint): void;
-export function tx_set_output_script(tx_in: Ref_wally_tx, index: number, script: Buffer|Uint8Array): void;
-export function tx_set_output_surjectionproof(tx_in: Ref_wally_tx, index: number, surjectionproof: Buffer|Uint8Array): void;
-export function tx_set_output_value(tx_in: Ref_wally_tx, index: number, value: Buffer|Uint8Array): void;
+export function tx_set_output_script(tx_in: Ref_wally_tx, index: number, script: Buffer|Uint8Array|null): void;
+export function tx_set_output_surjectionproof(tx_in: Ref_wally_tx, index: number, surjectionproof: Buffer|Uint8Array|null): void;
+export function tx_set_output_value(tx_in: Ref_wally_tx, index: number, value: Buffer|Uint8Array|null): void;
 export function tx_to_hex(tx: Ref_wally_tx, flags: number): string;
 export function tx_vsize_from_weight(weight: number): number;
-export function tx_witness_stack_add(stack: Ref_wally_tx_witness_stack, witness: Buffer|Uint8Array): void;
+export function tx_witness_stack_add(stack: Ref_wally_tx_witness_stack, witness: Buffer|Uint8Array|null): void;
 export function tx_witness_stack_add_dummy(stack: Ref_wally_tx_witness_stack, flags: number): void;
 export function tx_witness_stack_clone(stack: Ref_wally_tx_witness_stack): Ref_wally_tx_witness_stack;
 export function tx_witness_stack_free(stack: Ref_wally_tx_witness_stack): void;
-export function tx_witness_stack_from_bytes(bytes: Buffer|Uint8Array): Ref_wally_tx_witness_stack;
+export function tx_witness_stack_from_bytes(bytes: Buffer|Uint8Array|null): Ref_wally_tx_witness_stack;
 export function tx_witness_stack_get_length(stack: Ref_wally_tx_witness_stack): number;
 export function tx_witness_stack_get_num_items(stack: Ref_wally_tx_witness_stack): number;
 export function tx_witness_stack_init(allocation_len: number): Ref_wally_tx_witness_stack;
-export function tx_witness_stack_set(stack: Ref_wally_tx_witness_stack, index: number, witness: Buffer|Uint8Array): void;
+export function tx_witness_stack_set(stack: Ref_wally_tx_witness_stack, index: number, witness: Buffer|Uint8Array|null): void;
 export function tx_witness_stack_set_dummy(stack: Ref_wally_tx_witness_stack, index: number, flags: number): void;
-export function varbuff_get_length(bytes: Buffer|Uint8Array): number;
+export function varbuff_get_length(bytes: Buffer|Uint8Array|null): number;
 export function varint_get_length(value: bigint): number;
-export function wif_from_bytes(priv_key: Buffer|Uint8Array, prefix: number, flags: number): string;
+export function wif_from_bytes(priv_key: Buffer|Uint8Array|null, prefix: number, flags: number): string;
 export function wif_is_uncompressed(wif: string): number;
 export function wif_to_address(wif: string, prefix: number, version: number): string;
 export function wif_to_bytes(wif: string, prefix: number, flags: number): Buffer;
 export function wif_to_public_key(wif: string, prefix: number): Buffer;
-export function witness_multisig_from_bytes(script: Buffer|Uint8Array, bytes: Buffer|Uint8Array, sighash: Uint32Array|number[], flags: number): Ref_wally_tx_witness_stack;
-export function witness_p2tr_from_sig(sig: Buffer|Uint8Array): Ref_wally_tx_witness_stack;
-export function witness_p2wpkh_from_der(pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array): Ref_wally_tx_witness_stack;
-export function witness_p2wpkh_from_sig(pub_key: Buffer|Uint8Array, sig: Buffer|Uint8Array, sighash: number): Ref_wally_tx_witness_stack;
-export function witness_program_from_bytes(bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function witness_program_from_bytes_and_version(bytes: Buffer|Uint8Array, version: number, flags: number): Buffer;
-export function aes(key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function aes_cbc(key: Buffer|Uint8Array, iv: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function aes_cbc_with_ecdh_key(priv_key: Buffer|Uint8Array, iv: Buffer|Uint8Array, bytes: Buffer|Uint8Array, pub_key: Buffer|Uint8Array, label: Buffer|Uint8Array, flags: number): Buffer;
-export function asset_pak_whitelistproof(online_keys: Buffer|Uint8Array, offline_keys: Buffer|Uint8Array, key_index: number, sub_pubkey: Buffer|Uint8Array, online_priv_key: Buffer|Uint8Array, summed_key: Buffer|Uint8Array): Buffer;
-export function asset_surjectionproof(output_asset: Buffer|Uint8Array, output_abf: Buffer|Uint8Array, output_generator: Buffer|Uint8Array, bytes: Buffer|Uint8Array, asset: Buffer|Uint8Array, abf: Buffer|Uint8Array, generator: Buffer|Uint8Array): Buffer;
+export function witness_multisig_from_bytes(script: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, sighash: Uint32Array|number[], flags: number): Ref_wally_tx_witness_stack;
+export function witness_p2tr_from_sig(sig: Buffer|Uint8Array|null): Ref_wally_tx_witness_stack;
+export function witness_p2wpkh_from_der(pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null): Ref_wally_tx_witness_stack;
+export function witness_p2wpkh_from_sig(pub_key: Buffer|Uint8Array|null, sig: Buffer|Uint8Array|null, sighash: number): Ref_wally_tx_witness_stack;
+export function witness_program_from_bytes(bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function witness_program_from_bytes_and_version(bytes: Buffer|Uint8Array|null, version: number, flags: number): Buffer;
+export function aes(key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function aes_cbc(key: Buffer|Uint8Array|null, iv: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function aes_cbc_with_ecdh_key(priv_key: Buffer|Uint8Array|null, iv: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, pub_key: Buffer|Uint8Array|null, label: Buffer|Uint8Array|null, flags: number): Buffer;
+export function asset_pak_whitelistproof(online_keys: Buffer|Uint8Array|null, offline_keys: Buffer|Uint8Array|null, key_index: number, sub_pubkey: Buffer|Uint8Array|null, online_priv_key: Buffer|Uint8Array|null, summed_key: Buffer|Uint8Array|null): Buffer;
+export function asset_surjectionproof(output_asset: Buffer|Uint8Array|null, output_abf: Buffer|Uint8Array|null, output_generator: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, asset: Buffer|Uint8Array|null, abf: Buffer|Uint8Array|null, generator: Buffer|Uint8Array|null): Buffer;
 export function base58_n_to_bytes(str_in: string, str_len: number, flags: number): Buffer;
 export function base58_to_bytes(str_in: string, flags: number): Buffer;
 export function base64_n_to_bytes(str_in: string, str_len: number, flags: number): Buffer;
@@ -774,9 +774,9 @@ export function bip32_path_from_str_n(path_str: string, path_str_len: number, ch
 export function descriptor_get_key_child_path_str(descriptor: Ref_wally_descriptor, index: number): string;
 export function descriptor_get_key_origin_path_str(descriptor: Ref_wally_descriptor, index: number): string;
 export function descriptor_to_script(descriptor: Ref_wally_descriptor, depth: number, index: number, variant: number, multi_index: number, child_num: number, flags: number): Buffer;
-export function ec_sig_from_bytes(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, flags: number): Buffer;
-export function ec_sig_from_bytes_aux(priv_key: Buffer|Uint8Array, bytes: Buffer|Uint8Array, aux_rand: Buffer|Uint8Array, flags: number): Buffer;
-export function keypath_get_path(val: Buffer|Uint8Array): Uint32Array;
+export function ec_sig_from_bytes(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, flags: number): Buffer;
+export function ec_sig_from_bytes_aux(priv_key: Buffer|Uint8Array|null, bytes: Buffer|Uint8Array|null, aux_rand: Buffer|Uint8Array|null, flags: number): Buffer;
+export function keypath_get_path(val: Buffer|Uint8Array|null): Uint32Array;
 export function map_get_item(map_in: Ref_wally_map, index: number): Buffer;
 export function map_get_item_key(map_in: Ref_wally_map, index: number): Buffer;
 export function map_keypath_get_item_path(map_in: Ref_wally_map, index: number): Uint32Array;
@@ -797,7 +797,7 @@ export function psbt_get_input_pegin_claim_script(psbt: Ref_wally_psbt, index: n
 export function psbt_get_input_pegin_genesis_blockhash(psbt: Ref_wally_psbt, index: number): Buffer;
 export function psbt_get_input_pegin_txout_proof(psbt: Ref_wally_psbt, index: number): Buffer;
 export function psbt_get_input_redeem_script(psbt: Ref_wally_psbt, index: number): Buffer;
-export function psbt_get_input_scriptcode(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array): Buffer;
+export function psbt_get_input_scriptcode(psbt: Ref_wally_psbt, index: number, script: Buffer|Uint8Array|null): Buffer;
 export function psbt_get_input_signature(psbt: Ref_wally_psbt, index: number, subindex: number): Buffer;
 export function psbt_get_input_signing_script(psbt: Ref_wally_psbt, index: number): Buffer;
 export function psbt_get_input_taproot_internal_key(psbt: Ref_wally_psbt, index: number): Buffer;
@@ -869,6 +869,6 @@ export function tx_output_get_surjectionproof(tx_output_in: Ref_wally_tx_output)
 export function tx_output_get_value(tx_output_in: Ref_wally_tx_output): Buffer;
 export function tx_to_bytes(tx: Ref_wally_tx, flags: number): Buffer;
 export function tx_witness_stack_to_bytes(stack: Ref_wally_tx_witness_stack): Buffer;
-export function varbuff_to_bytes(bytes: Buffer|Uint8Array): Buffer;
+export function varbuff_to_bytes(bytes: Buffer|Uint8Array|null): Buffer;
 export function varint_to_bytes(value: bigint): Buffer;
 // END AUTOGENERATED
Risk score
Why this scored 18/100

Our methodology →
Potential impact 2/30
Exploitability 1/25
Stealth signal 1/15
Affected reach 3/15
Confidence 8/10
Evidence quality 3/5
Human-validated context
Community notes

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The AI analysis stands alone for now. Submit a note if you can add evidence or important context.
What the developer wrote

What changed, and why it matters

Security signals we found

Evidence from the diff

Changed components

Why this scored 18/100

Community notes

Related watches

build(deps-dev): bump browserslist in /src/wasm_package

build(deps-dev): bump fast-uri from 3.1.5 to 3.1.7 in /src/wasm_package

psbt: return an error if fetching input_amount when not present
