parameters: (self)
docstring: Yield ``(channel, message)`` tuples as messages arrive on subscribed
          channels.
docstring_summary: Yield ``(channel, message)`` tuples as messages arrive on subscribed
          channels.
docstring_tokens: Yield ( channel message ) tuples as messages arrive on subscribed channels .
function: def __iter__(self):
          """
          Yield ``(channel, message)`` tuples as messages arrive on subscribed
          channels.
          """
          for channel, item in self.subscriber:
              yield channel, item
function_tokens: def __iter__ ( self ) : for channel , item in self . subscriber : yield channel , item