Error when parsing captured p2p messages using message-capture-parser.py #25954

I am unable to read the p2p messages saved in msgs_sent.dat and msgs_recv.dat files.

Steps to reproduce:

1. Run bitcoind with capturemessages=1
2. Wait for a few minutes, ensure there are some peers and corresponding directories created in ~/.bitcoin/message_capture
3. Run message capture python script with: python message-capture-parser.py -o out.json ~/.bitcoin/message_capture/<IP_ADDRESS>_<PORT>/msgs_sent.dat

I am getting this error for sent/recv dat files of all peers:

python message-capture-parser.py -o out.json /home/test/.bitcoin/signet/message_capture/95.217.184.148_38333/msgs_sent.dat 
[ ######################################################################################################################           ]  92%Traceback (most recent call last):
  File "/home/test/Downloads/bitcoin/contrib/message-capture/message-capture-parser.py", line 215, in <module>
    main()
  File "/home/test/Downloads/bitcoin/contrib/message-capture/message-capture-parser.py", line 200, in main
    process_file(str(capture), messages, "recv" in capture.stem, progress_bar)
  File "/home/test/Downloads/bitcoin/contrib/message-capture/message-capture-parser.py", line 160, in process_file
    msg_dict["body"] = to_jsonable(msg)
  File "/home/test/Downloads/bitcoin/contrib/message-capture/message-capture-parser.py", line 83, in to_jsonable
    assert all(isinstance(a, int) for a in val)
AssertionError

Message parsing script: https://github.com/bitcoin/bitcoin/blob/master/contrib/message-capture/message-capture-parser.py Doc: https://github.com/bitcoin/bitcoin/blob/master/contrib/message-capture/message-capture-docs.md

Try removing headers from HASH_INT_VECTORS. I think the deser_uint256_vector requirement is covered by the fact that hashPrevBlock and hashMerkleRoot are in the HASH_INTS list. But someone else should probably confirm this.