docs: def reply(self, original_headers, message, properties=None):
  		"""
  		Reply to a RPC request. This function will use the default exchange, to directly contact the reply_to queue.
  
  		Parameters
  		----------
  		original_headers: dict
  			The headers of the originating message that caused this reply.
  		message: string
  			Message to reply with
  		properties: dict
  			Properties to set on message. This parameter is optional, but if set, at least the following options must be set:
  				content_type: string - what content_type to specify, default is 'text/plain'.
  				delivery_mode: int - what delivery_mode to use. By default message are not persistent, but this can be
  					set by specifying PERSISTENT_MESSAGE .
  		"""
  		rpc_reply(self.channel, original_headers, message, properties)