Fix _send_channel_lock not excluded from pickle — rabbitmq_channel.py:122

asyncio.Lock is not safely picklable. Added "_send_channel_lock" to the exclusion list in __getstate__.

Author: toby-coleman

plugboard/connector/rabbitmq_channel.py

@@ -120,7 +120,7 @@ def __init__(self, *args: _t.Any, **kwargs: _t.Any) -> None:
 
     def __getstate__(self) -> dict:
         state = self.__dict__.copy()
-        for attr in ("_send_channel", "_recv_channel", "_recv_channel_lock"):
+        for attr in ("_send_channel", "_send_channel_lock", "_recv_channel", "_recv_channel_lock"):
             if attr in state:
                 del state[attr]
         return state