grpc2py: fix F401 and E261 flake8 violations in generator and generated output

diff --git a/contrib/msggen/msggen/gen/grpc2py.py b/contrib/msggen/msggen/gen/grpc2py.py
index cbd0bf04..dfba1b7d 100644
--- a/contrib/msggen/msggen/gen/grpc2py.py
+++ b/contrib/msggen/msggen/gen/grpc2py.py
@@ -83,9 +83,6 @@ class Grpc2PyGenerator(IGenerator):
         # `doc/schemas`. Do not edit this file manually as it would get
         # overwritten.
 
-        import json
-
-
         def hexlify(b):
             return b if b is None else b.hex()
 
@@ -109,7 +106,7 @@ class Grpc2PyGenerator(IGenerator):
         self.write("""\
 
 
-        def decodekeysend_routes2py(m): # manual override
+        def decodekeysend_routes2py(m):  # manual override
             return remove_default({
                 "expirydelta": m.expirydelta,
                 "feebase": amount2msat(m.feebase),
@@ -122,7 +119,7 @@ class Grpc2PyGenerator(IGenerator):
         self.write("""\
 
 
-        def decodepay_routes2py(m): # manual override
+        def decodepay_routes2py(m):  # manual override
             return remove_default({
                 "cltv_expiry_delta": m.cltv_expiry_delta,
                 "fee_base_msat": amount2msat(m.fee_base_msat),
@@ -189,7 +186,7 @@ class Grpc2PyGenerator(IGenerator):
             elif isinstance(f, ArrayField) and isinstance(f.itemtype, PrimitiveField):
                 rhs = self.converters[f.itemtype.typename].format(name=name)
                 self.write(
-                    f'        "{name}": [{rhs} for i in {rhs}], # ArrayField[primitive] in generate_composite\n',
+                    f'        "{name}": [{rhs} for i in {rhs}],  # ArrayField[primitive] in generate_composite\n',
                     cleanup=False,
                 )
 
diff --git a/contrib/pyln-testing/pyln/testing/grpc2py.py b/contrib/pyln-testing/pyln/testing/grpc2py.py
index c8f6f15a..9523cc67 100644
--- a/contrib/pyln-testing/pyln/testing/grpc2py.py
+++ b/contrib/pyln-testing/pyln/testing/grpc2py.py
@@ -2,9 +2,6 @@
 # `doc/schemas`. Do not edit this file manually as it would get
 # overwritten.
 
-import json
-
-
 def hexlify(b):
     return b if b is None else b.hex()
 
@@ -85,7 +82,7 @@ def listpeers_peers_log2py(m):
 def listpeers_peers2py(m):
     return remove_default({
         "log": [listpeers_peers_log2py(i) for i in m.log],  # ArrayField[composite] in generate_composite
-        "netaddr": [m.netaddr for i in m.netaddr], # ArrayField[primitive] in generate_composite
+        "netaddr": [m.netaddr for i in m.netaddr],  # ArrayField[primitive] in generate_composite
         "connected": m.connected,  # PrimitiveField in generate_composite
         "features": hexlify(m.features),  # PrimitiveField in generate_composite
         "id": hexlify(m.id),  # PrimitiveField in generate_composite
@@ -332,8 +329,8 @@ def checkmessage2py(m):
 
 def close2py(m):
     return remove_default({
-        "txids": [hexlify(m.txids) for i in hexlify(m.txids)], # ArrayField[primitive] in generate_composite
-        "txs": [hexlify(m.txs) for i in hexlify(m.txs)], # ArrayField[primitive] in generate_composite
+        "txids": [hexlify(m.txids) for i in hexlify(m.txids)],  # ArrayField[primitive] in generate_composite
+        "txs": [hexlify(m.txs) for i in hexlify(m.txs)],  # ArrayField[primitive] in generate_composite
         "type": str(m.item_type),  # EnumField in generate_composite
     })
 
@@ -384,7 +381,7 @@ def createinvoice2py(m):
 
 def datastore2py(m):
     return remove_default({
-        "key": [m.key for i in m.key], # ArrayField[primitive] in generate_composite
+        "key": [m.key for i in m.key],  # ArrayField[primitive] in generate_composite
         "generation": m.generation,  # PrimitiveField in generate_composite
         "hex": hexlify(m.hex),  # PrimitiveField in generate_composite
         "string": m.string,  # PrimitiveField in generate_composite
@@ -405,14 +402,14 @@ def datastoreusage2py(m):
 
 def createonion2py(m):
     return remove_default({
-        "shared_secrets": [hexlify(m.shared_secrets) for i in hexlify(m.shared_secrets)], # ArrayField[primitive] in generate_composite
+        "shared_secrets": [hexlify(m.shared_secrets) for i in hexlify(m.shared_secrets)],  # ArrayField[primitive] in generate_composite
         "onion": hexlify(m.onion),  # PrimitiveField in generate_composite
     })
 
 
 def deldatastore2py(m):
     return remove_default({
-        "key": [m.key for i in m.key], # ArrayField[primitive] in generate_composite
+        "key": [m.key for i in m.key],  # ArrayField[primitive] in generate_composite
         "generation": m.generation,  # PrimitiveField in generate_composite
         "hex": hexlify(m.hex),  # PrimitiveField in generate_composite
         "string": m.string,  # PrimitiveField in generate_composite
@@ -450,13 +447,13 @@ def dev_forget_channel2py(m):
 
 def emergencyrecover2py(m):
     return remove_default({
-        "stubs": [hexlify(m.stubs) for i in hexlify(m.stubs)], # ArrayField[primitive] in generate_composite
+        "stubs": [hexlify(m.stubs) for i in hexlify(m.stubs)],  # ArrayField[primitive] in generate_composite
     })
 
 
 def getemergencyrecoverdata2py(m):
     return remove_default({
-        "backed_up_channel_ids": [hexlify(m.backed_up_channel_ids) for i in hexlify(m.backed_up_channel_ids)], # ArrayField[primitive] in generate_composite
+        "backed_up_channel_ids": [hexlify(m.backed_up_channel_ids) for i in hexlify(m.backed_up_channel_ids)],  # ArrayField[primitive] in generate_composite
         "can_create_penalty": m.can_create_penalty,  # PrimitiveField in generate_composite
         "filedata": hexlify(m.filedata),  # PrimitiveField in generate_composite
     })
@@ -478,7 +475,7 @@ def recover2py(m):
 
 def recoverchannel2py(m):
     return remove_default({
-        "stubs": [m.stubs for i in m.stubs], # ArrayField[primitive] in generate_composite
+        "stubs": [m.stubs for i in m.stubs],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -538,7 +535,7 @@ def listinvoicerequests2py(m):
 
 def listdatastore_datastore2py(m):
     return remove_default({
-        "key": [m.key for i in m.key], # ArrayField[primitive] in generate_composite
+        "key": [m.key for i in m.key],  # ArrayField[primitive] in generate_composite
         "generation": m.generation,  # PrimitiveField in generate_composite
         "hex": hexlify(m.hex),  # PrimitiveField in generate_composite
         "string": m.string,  # PrimitiveField in generate_composite
@@ -914,7 +911,7 @@ def listpeerchannels_channels_alias2py(m):
 
 def listpeerchannels_channels_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1001,13 +998,13 @@ def listpeerchannels_channels_updates2py(m):
 def listpeerchannels_channels2py(m):
     return remove_default({
         "closer": str(m.closer),  # EnumField in generate_composite
-        "features": [m.features for i in m.features], # ArrayField[primitive] in generate_composite
+        "features": [m.features for i in m.features],  # ArrayField[primitive] in generate_composite
         "htlcs": [listpeerchannels_channels_htlcs2py(i) for i in m.htlcs],  # ArrayField[composite] in generate_composite
         "inflight": [listpeerchannels_channels_inflight2py(i) for i in m.inflight],  # ArrayField[composite] in generate_composite
         "opener": str(m.opener),  # EnumField in generate_composite
         "state": str(m.state),  # EnumField in generate_composite
         "state_changes": [listpeerchannels_channels_state_changes2py(i) for i in m.state_changes],  # ArrayField[composite] in generate_composite
-        "status": [m.status for i in m.status], # ArrayField[primitive] in generate_composite
+        "status": [m.status for i in m.status],  # ArrayField[primitive] in generate_composite
         "channel_id": hexlify(m.channel_id),  # PrimitiveField in generate_composite
         "close_to": hexlify(m.close_to),  # PrimitiveField in generate_composite
         "close_to_addr": m.close_to_addr,  # PrimitiveField in generate_composite
@@ -1074,7 +1071,7 @@ def listclosedchannels_closedchannels_alias2py(m):
 
 def listclosedchannels_closedchannels_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1228,7 +1225,7 @@ def decode_offer_recurrence2py(m):
 
 def decode_restrictions2py(m):
     return remove_default({
-        "alternatives": [m.alternatives for i in m.alternatives], # ArrayField[primitive] in generate_composite
+        "alternatives": [m.alternatives for i in m.alternatives],  # ArrayField[primitive] in generate_composite
         "summary": m.summary,  # PrimitiveField in generate_composite
     })
 
@@ -1272,11 +1269,11 @@ def decode2py(m):
         "invoice_fallbacks": [decode_invoice_fallbacks2py(i) for i in m.invoice_fallbacks],  # ArrayField[composite] in generate_composite
         "invoice_paths": [decode_invoice_paths2py(i) for i in m.invoice_paths],  # ArrayField[composite] in generate_composite
         "invreq_paths": [decode_invreq_paths2py(i) for i in m.invreq_paths],  # ArrayField[composite] in generate_composite
-        "offer_chains": [hexlify(m.offer_chains) for i in hexlify(m.offer_chains)], # ArrayField[primitive] in generate_composite
+        "offer_chains": [hexlify(m.offer_chains) for i in hexlify(m.offer_chains)],  # ArrayField[primitive] in generate_composite
         "offer_paths": [decode_offer_paths2py(i) for i in m.offer_paths],  # ArrayField[composite] in generate_composite
-        "proof_leaf_hashes": [hexlify(m.proof_leaf_hashes) for i in hexlify(m.proof_leaf_hashes)], # ArrayField[primitive] in generate_composite
-        "proof_missing_hashes": [hexlify(m.proof_missing_hashes) for i in hexlify(m.proof_missing_hashes)], # ArrayField[primitive] in generate_composite
-        "proof_omitted_tlvs": [m.proof_omitted_tlvs for i in m.proof_omitted_tlvs], # ArrayField[primitive] in generate_composite
+        "proof_leaf_hashes": [hexlify(m.proof_leaf_hashes) for i in hexlify(m.proof_leaf_hashes)],  # ArrayField[primitive] in generate_composite
+        "proof_missing_hashes": [hexlify(m.proof_missing_hashes) for i in hexlify(m.proof_missing_hashes)],  # ArrayField[primitive] in generate_composite
+        "proof_omitted_tlvs": [m.proof_omitted_tlvs for i in m.proof_omitted_tlvs],  # ArrayField[primitive] in generate_composite
         "restrictions": [decode_restrictions2py(i) for i in m.restrictions],  # ArrayField[composite] in generate_composite
         "type": str(m.item_type),  # EnumField in generate_composite
         "unknown_invoice_request_tlvs": [decode_unknown_invoice_request_tlvs2py(i) for i in m.unknown_invoice_request_tlvs],  # ArrayField[composite] in generate_composite
@@ -1555,7 +1552,7 @@ def fundchannel_complete2py(m):
 
 def fundchannel_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1573,7 +1570,7 @@ def fundchannel2py(m):
 
 def fundchannel_start_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1756,7 +1753,7 @@ def listhtlcs2py(m):
 
 def multifundchannel_channel_ids_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1823,7 +1820,7 @@ def openchannel_abort2py(m):
 
 def openchannel_bump_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1840,7 +1837,7 @@ def openchannel_bump2py(m):
 
 def openchannel_init_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1865,7 +1862,7 @@ def openchannel_signed2py(m):
 
 def openchannel_update_channel_type2py(m):
     return remove_default({
-        "bits": [m.bits for i in m.bits], # ArrayField[primitive] in generate_composite
+        "bits": [m.bits for i in m.bits],  # ArrayField[primitive] in generate_composite
         "names": [str(i) for i in m.names],  # ArrayField[composite] in generate_composite
     })
 
@@ -1905,7 +1902,7 @@ def plugin2py(m):
 
 def renepaystatus_paystatus2py(m):
     return remove_default({
-        "notes": [m.notes for i in m.notes], # ArrayField[primitive] in generate_composite
+        "notes": [m.notes for i in m.notes],  # ArrayField[primitive] in generate_composite
         "status": str(m.status),  # EnumField in generate_composite
         "amount_msat": amount2msat(m.amount_msat),  # PrimitiveField in generate_composite
         "amount_sent_msat": amount2msat(m.amount_sent_msat),  # PrimitiveField in generate_composite
@@ -2004,8 +2001,8 @@ def setchannel2py(m):
 
 def setconfig_config2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
         "config": m.config,  # PrimitiveField in generate_composite
         "dynamic": m.dynamic,  # PrimitiveField in generate_composite
         "plugin": m.plugin,  # PrimitiveField in generate_composite
@@ -2084,8 +2081,8 @@ def spliceout2py(m):
 
 def dev_splice2py(m):
     return remove_default({
-        "dryrun": [m.dryrun for i in m.dryrun], # ArrayField[primitive] in generate_composite
-        "log": [m.log for i in m.log], # ArrayField[primitive] in generate_composite
+        "dryrun": [m.dryrun for i in m.dryrun],  # ArrayField[primitive] in generate_composite
+        "log": [m.log for i in m.log],  # ArrayField[primitive] in generate_composite
         "psbt": m.psbt,  # PrimitiveField in generate_composite
         "tx": m.tx,  # PrimitiveField in generate_composite
         "txid": m.txid,  # PrimitiveField in generate_composite
@@ -2216,8 +2213,8 @@ def wait2py(m):
 
 def listconfigs_configs_addr2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2244,8 +2241,8 @@ def listconfigs_configs_always_use_proxy2py(m):
 
 def listconfigs_configs_announce_addr2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2286,8 +2283,8 @@ def listconfigs_configs_autolisten2py(m):
 
 def listconfigs_configs_bind_addr2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2342,16 +2339,16 @@ def listconfigs_configs_conf2py(m):
 
 def listconfigs_configs_currencyrate_add_source2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
         "plugin": m.plugin,  # PrimitiveField in generate_composite
     })
 
 
 def listconfigs_configs_currencyrate_disable_source2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
         "plugin": m.plugin,  # PrimitiveField in generate_composite
     })
 
@@ -2394,8 +2391,8 @@ def listconfigs_configs_disable_mpp2py(m):
 
 def listconfigs_configs_disable_plugin2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2500,8 +2497,8 @@ def listconfigs_configs_ignore_fee_limits2py(m):
 
 def listconfigs_configs_important_plugin2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2521,8 +2518,8 @@ def listconfigs_configs_lightning_dir2py(m):
 
 def listconfigs_configs_log_file2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2599,15 +2596,15 @@ def listconfigs_configs_pid_file2py(m):
 
 def listconfigs_configs_plugin2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
 def listconfigs_configs_plugin_dir2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2669,8 +2666,8 @@ def listconfigs_configs_signet2py(m):
 
 def listconfigs_configs_subdaemon2py(m):
     return remove_default({
-        "sources": [m.sources for i in m.sources], # ArrayField[primitive] in generate_composite
-        "values_str": [m.values_str for i in m.values_str], # ArrayField[primitive] in generate_composite
+        "sources": [m.sources for i in m.sources],  # ArrayField[primitive] in generate_composite
+        "values_str": [m.values_str for i in m.values_str],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2743,7 +2740,7 @@ def preapproveinvoice2py(m):
 
 def staticbackup2py(m):
     return remove_default({
-        "scb": [hexlify(m.scb) for i in hexlify(m.scb)], # ArrayField[primitive] in generate_composite
+        "scb": [hexlify(m.scb) for i in hexlify(m.scb)],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -2948,7 +2945,7 @@ def bkpr_editdescriptionbyoutpoint2py(m):
 
 def bkpr_report2py(m):
     return remove_default({
-        "report": [m.report for i in m.report], # ArrayField[primitive] in generate_composite
+        "report": [m.report for i in m.report],  # ArrayField[primitive] in generate_composite
     })
 
 
@@ -3074,8 +3071,8 @@ def askrene_listlayers_layers2py(m):
         "channel_updates": [askrene_listlayers_layers_channel_updates2py(i) for i in m.channel_updates],  # ArrayField[composite] in generate_composite
         "constraints": [askrene_listlayers_layers_constraints2py(i) for i in m.constraints],  # ArrayField[composite] in generate_composite
         "created_channels": [askrene_listlayers_layers_created_channels2py(i) for i in m.created_channels],  # ArrayField[composite] in generate_composite
-        "disabled_channels": [m.disabled_channels for i in m.disabled_channels], # ArrayField[primitive] in generate_composite
-        "disabled_nodes": [hexlify(m.disabled_nodes) for i in hexlify(m.disabled_nodes)], # ArrayField[primitive] in generate_composite
+        "disabled_channels": [m.disabled_channels for i in m.disabled_channels],  # ArrayField[primitive] in generate_composite
+        "disabled_nodes": [hexlify(m.disabled_nodes) for i in hexlify(m.disabled_nodes)],  # ArrayField[primitive] in generate_composite
         "node_biases": [askrene_listlayers_layers_node_biases2py(i) for i in m.node_biases],  # ArrayField[composite] in generate_composite
         "layer": m.layer,  # PrimitiveField in generate_composite
         "persistent": m.persistent,  # PrimitiveField in generate_composite
@@ -3141,8 +3138,8 @@ def askrene_create_layer_layers2py(m):
         "channel_updates": [askrene_create_layer_layers_channel_updates2py(i) for i in m.channel_updates],  # ArrayField[composite] in generate_composite
         "constraints": [askrene_create_layer_layers_constraints2py(i) for i in m.constraints],  # ArrayField[composite] in generate_composite
         "created_channels": [askrene_create_layer_layers_created_channels2py(i) for i in m.created_channels],  # ArrayField[composite] in generate_composite
-        "disabled_channels": [m.disabled_channels for i in m.disabled_channels], # ArrayField[primitive] in generate_composite
-        "disabled_nodes": [hexlify(m.disabled_nodes) for i in hexlify(m.disabled_nodes)], # ArrayField[primitive] in generate_composite
+        "disabled_channels": [m.disabled_channels for i in m.disabled_channels],  # ArrayField[primitive] in generate_composite
+        "disabled_nodes": [hexlify(m.disabled_nodes) for i in hexlify(m.disabled_nodes)],  # ArrayField[primitive] in generate_composite
         "node_biases": [askrene_create_layer_layers_node_biases2py(i) for i in m.node_biases],  # ArrayField[composite] in generate_composite
         "layer": m.layer,  # PrimitiveField in generate_composite
         "persistent": m.persistent,  # PrimitiveField in generate_composite
@@ -3343,7 +3340,7 @@ def listchannelmoves2py(m):
 
 def listchainmoves_chainmoves2py(m):
     return remove_default({
-        "extra_tags": [m.extra_tags for i in m.extra_tags], # ArrayField[primitive] in generate_composite
+        "extra_tags": [m.extra_tags for i in m.extra_tags],  # ArrayField[primitive] in generate_composite
         "primary_tag": str(m.primary_tag),  # EnumField in generate_composite
         "account_id": m.account_id,  # PrimitiveField in generate_composite
         "blockheight": m.blockheight,  # PrimitiveField in generate_composite
@@ -3432,9 +3429,9 @@ def sendamount2py(m):
 
 def createproof_proofs2py(m):
     return remove_default({
-        "invoice_fields_included": [m.invoice_fields_included for i in m.invoice_fields_included], # ArrayField[primitive] in generate_composite
-        "invreq_fields_included": [m.invreq_fields_included for i in m.invreq_fields_included], # ArrayField[primitive] in generate_composite
-        "offer_fields_included": [m.offer_fields_included for i in m.offer_fields_included], # ArrayField[primitive] in generate_composite
+        "invoice_fields_included": [m.invoice_fields_included for i in m.invoice_fields_included],  # ArrayField[primitive] in generate_composite
+        "invreq_fields_included": [m.invreq_fields_included for i in m.invreq_fields_included],  # ArrayField[primitive] in generate_composite
+        "offer_fields_included": [m.offer_fields_included for i in m.offer_fields_included],  # ArrayField[primitive] in generate_composite
         "bolt12": m.bolt12,  # PrimitiveField in generate_composite
     })
 
@@ -3457,12 +3454,12 @@ def xkeysend2py(m):
 
 def graceful2py(m):
     return remove_default({
-        "pending_htlc_expiries": [m.pending_htlc_expiries for i in m.pending_htlc_expiries], # ArrayField[primitive] in generate_composite
-        "pending_peers": [hexlify(m.pending_peers) for i in hexlify(m.pending_peers)], # ArrayField[primitive] in generate_composite
+        "pending_htlc_expiries": [m.pending_htlc_expiries for i in m.pending_htlc_expiries],  # ArrayField[primitive] in generate_composite
+        "pending_peers": [hexlify(m.pending_peers) for i in hexlify(m.pending_peers)],  # ArrayField[primitive] in generate_composite
     })
 
 
-def decodekeysend_routes2py(m): # manual override
+def decodekeysend_routes2py(m):  # manual override
     return remove_default({
         "expirydelta": m.expirydelta,
         "feebase": amount2msat(m.feebase),
@@ -3472,7 +3469,7 @@ def decodekeysend_routes2py(m): # manual override
     })
 
 
-def decodepay_routes2py(m): # manual override
+def decodepay_routes2py(m):  # manual override
     return remove_default({
         "cltv_expiry_delta": m.cltv_expiry_delta,
         "fee_base_msat": amount2msat(m.fee_base_msat),