parameters: (self, callback)
docstring: This method is here in the event that subclasses of `BaseMultiplex` need
          to call callbacks in an implementation-specific way.  It just calls
          *callback*.
docstring_summary: This method is here in the event that subclasses of `BaseMultiplex` need
          to call callbacks in an implementation-specific way.  It just calls
          *callback*.
docstring_tokens: This method is here in the event that subclasses of BaseMultiplex need to call callbacks in an implementation - specific way . It just calls * callback * .
function: def _call_callback(self, callback):
          """
          This method is here in the event that subclasses of `BaseMultiplex` need
          to call callbacks in an implementation-specific way.  It just calls
          *callback*.
          """
          callback()
function_tokens: def _call_callback ( self , callback ) : callback ( )