|  | @@ -254,7 +254,7 @@ class _Context(grpc.ServicerContext):
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				|  |  |        else:
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				|  |  |          if self._state.initial_metadata_allowed:
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				|  |  |            operation = cygrpc.operation_send_initial_metadata(
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				|  |  | -              cygrpc.Metadata(initial_metadata), _EMPTY_FLAGS)
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				|  |  | +              _common.metadata(initial_metadata), _EMPTY_FLAGS)
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				|  |  |            self._rpc_event.operation_call.start_batch(
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				|  |  |                cygrpc.Operations((operation,)),
 | 
	
		
			
				|  |  |                _send_initial_metadata(self._state))
 |