autogenerate-rpc-examples.py: added feature to be able to rewrite the request in Rewriter

diff --git a/tests/autogenerate-rpc-examples.py b/tests/autogenerate-rpc-examples.py
index 2e577d5a..cb8f9f07 100644
--- a/tests/autogenerate-rpc-examples.py
+++ b/tests/autogenerate-rpc-examples.py
@@ -106,6 +106,7 @@ def wait_for_wallet_txs(node, timeout=10):
 class Rewriter:
     section: str                     # e.g. "connect"
     example_id: str                  # e.g. "example:connect#1"
+    requests: List[Mapping[str, Any]]
     responses: List[Mapping[str, Any]]
 
 
@@ -144,6 +145,8 @@ def rewrite_example(all_examples: Dict[str, Any], rw: Rewriter) -> None:
         if req.get("id") == rw.example_id:
             for resp_patch in rw.responses:
                 _deep_update(resp, resp_patch)
+            for req_patch in rw.requests:
+                _deep_update(req.setdefault("params", {}), req_patch)
             return
 
     raise ValueError(f"Example with id {rw.example_id!r} not found in section {rw.section!r}")
@@ -173,6 +176,7 @@ def rewrite_examples(examples: Dict[str, Any]):
         # The command_id is highly caller dependent, so clean it up.
         Rewriter("askrene-listreservations",
                  "example:askrene-listreservations#1",
+                 [],
                  [{"reservations": [{'command_id': 'examples.py:askrene-reserve#1/cln:askrene-reserve#2'},
                                     {'command_id': 'examples.py:askrene-reserve#2/cln:askrene-reserve#3'},
                                     {'command_id': 'examples.py:askrene-reserve#3/cln:askrene-reserve#4'},
@@ -180,21 +184,25 @@ def rewrite_examples(examples: Dict[str, Any]):
         # The proof changes each time
         Rewriter("fetchbip353",
                  "example:fetchbip353#1",
+                 [],
                  [{"proof": "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"}]),
         # Getinfo is version dependent and path dependent
         Rewriter("getinfo",
                  "example:getinfo#1",
+                 [],
                  [{"alias": "SILENTARTIST-" + CLN_NEXT_VERSION},
                   {"version": os.getenv('CLN_NEXT_VERSION')},
                   {"lightning-dir": "/home/rusty/.lightning/regtest"}]),
         # Logs are high-variance
         Rewriter("getlog",
                  "example:getlog#1",
+                 [],
                  [{"bytes_used": 3271748},
                   {"log": [{"num_skipped": 177}, {}, {"num_skipped": 4562}, {"num_skipped": 4554}, {}]}]),
         # listconfigs exposes lightning-dir paths, aliases
         Rewriter("listconfigs",
                  "example:listconfigs#3",
+                 [],
                  [{"configs": {"lightning-dir": {"value_str": "/home/rusty/.lightning/regtest"}}},
                   {"configs": {"alias": {"value_str": "SILENTARTIST-" + CLN_NEXT_VERSION}}},
                   {"configs": {"autoclean-expiredinvoices-age": {"source": "/home/rusty/.lightning/regtest/config.setconfig:2"}}},
@@ -207,17 +215,21 @@ def rewrite_examples(examples: Dict[str, Any]):
         # setconfig also exposes paths
         Rewriter("setconfig",
                  "example:setconfig#1",
+                 [],
                  [{"config": {"source": "/home/rusty/.lightning/regtest/config.setconfig:2"}},
                   {"config": {"plugin": "/usr/local/libexec/plugins/autoclean"}}]),
         Rewriter("setconfig",
                  "example:setconfig#2",
+                 [],
                  [{"config": {"source": "/home/rusty/.lightning/regtest/config.setconfig:3"}}]),
         # listnodes' aliases are version dependent
         Rewriter("listnodes",
                  "example:listnodes#1",
+                 [],
                  [{"nodes": [{"alias": "HOPPINGFIRE-" + CLN_NEXT_VERSION}]}]),
         Rewriter("listnodes",
                  "example:listnodes#2",
+                 [],
                  [{"nodes": [{"alias": "SILENTARTIST-" + CLN_NEXT_VERSION},
                              {"alias": "JUNIORBEAM-" + CLN_NEXT_VERSION},
                              {"alias": "HOPPINGFIRE-" + CLN_NEXT_VERSION},
@@ -225,23 +237,28 @@ def rewrite_examples(examples: Dict[str, Any]):
         # Ephemeral ports used when they connect to us
         Rewriter("listpeers",
                  "example:listpeers#2",
+                 [],
                  [{"peers": [{},
                              {"netaddr": ["127.0.0.1:54321"]},
                              {}]}]),
         # FIXME: SCB backup shouldn't save port for incoming connections
         Rewriter("staticbackup",
                  "example:staticbackup#1",
+                 [],
                  [{"scb": canned_scbs}]),
         # FIXME: Why do these vary?
         Rewriter("listhtlcs",
                  "example:listhtlcs#1",
+                 [],
                  [{"htlcs": [{}] * 10 + [{"updated_index": 96}] + [{}] * 8 + [{"updated_index": 170}] + [{}] * 3}]),
         # FIXME: These due to l1's different channel ordering maybe?
         Rewriter("listpeerchannels",
                  "example:listpeerchannels#1",
+                 [],
                  [{"channels": [{"scratch_txid": "f8042b0e29badb6450d57a8065a9c05d1a86cb8cd43d775d23bd3c8e3d180bd7"}]}]),
         Rewriter("listpeerchannels",
                  "example:listpeerchannels#2",
+                 [],
                  [{"channels": [{"scratch_txid": "f8042b0e29badb6450d57a8065a9c05d1a86cb8cd43d775d23bd3c8e3d180bd7"}, {}, {}]}]),
     ]
 
@@ -1163,7 +1180,6 @@ def generate_channels_examples(node_factory, bitcoind, l1, l3, l4, l5, regenerat
             l1.rpc.close(channel['channel_id'])
         wait_for(lambda: len(bitcoind.rpc.getrawmempool()) == 4)
         l1.fundwallet(10**8)
-
         destinations_2 = [
             {
                 'id': f'{l3.info["id"]}@127.0.0.1:{l3.port}',