PostgresSaver Orjson serialization

[rcwylie]

Semi-Successfully implemented Postgresaver in my multi agent workflow. However getting huge amounts of serialisation errors when running. It doesn't "break" the code and the outputs are finally accessible but would like to fix.

Code:

        connection_kwargs = {
            "autocommit": True,
            "prepare_threshold": 0,
        }

        resp = None
        # Create a connection pool
        with ConnectionPool(
            # Example configuration
            conninfo=DB_URI,
            max_size=20,
            kwargs=connection_kwargs,
        ) as pool:
            checkpointer = PostgresSaver(pool)

            query_graph_1 = query_workflow.compile(checkpointer = checkpointer)

            resp = query_graph_1.invoke({"messages": [input_message]}, config)
            

Errors:
2024-09-28 14:35:42,733 DEBUG:Orjson serialization failed: TypeError('Type is not JSON serializable: frozenset'). Falling back to json.
2024-09-28 14:35:42,733 DEBUG:Failed to serialize <class 'frozenset'> to JSON: Object of type frozenset is not JSON serializable
2024-09-28 14:35:42,733 DEBUG:Orjson serialization failed: TypeError('Type is not JSON serializable: CaseInsensitiveDict'). Falling back to json.
2024-09-28 14:35:42,733 DEBUG:Failed to serialize <class 'requests.structures.CaseInsensitiveDict'> to JSON: Object of type CaseInsensitiveDict is not JSON serializable
2024-09-28 14:35:42,734 DEBUG:Orjson serialization failed: TypeError('Type is not JSON serializable: RequestsCookieJar'). Falling back to json.
2024-09-28 14:35:42,734 DEBUG:Failed to serialize <class 'requests.cookies.RequestsCookieJar'> to JSON: Object of type RequestsCookieJar is not JSON serializable
2024-09-28 14:35:42,734 DEBUG:Orjson serialization failed: TypeError('Type is not JSON serializable: HTTPAdapter'). Falling back to json.

Any help would be great thank you