|  | @@ -213,7 +213,7 @@ class StreamStreamChannelRpc(six.with_metaclass(abc.ABCMeta)):
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				|  |  |          raise NotImplementedError()
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				|  |  |  
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				|  |  |  
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				|  |  | -class Channel(six.with_metaclass(abc.ABCMeta), grpc.Channel):
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				|  |  | +class Channel(six.with_metaclass(abc.ABCMeta, grpc.Channel)):
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				|  |  |      """A grpc.Channel double with which to test a system that invokes RPCs."""
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				|  |  |  
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				|  |  |      @abc.abstractmethod
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