code: def queue_purge(self, queue='', nowait=False):
          
          args = AMQPWriter()
          args.write_short(0)
          args.write_shortstr(queue)
          args.write_bit(nowait)
          self._send_method((50, 30), args)
  
          if not nowait:
              return self.wait(allowed_methods=[
                  (50, 31),  # Channel.queue_purge_ok
              ])
docs: Purge a queue
  
          This method removes all messages from a queue.  It does not
          cancel consumers.  Purged messages are deleted without any
          formal "undo" mechanism.
  
          RULE:
  
              A call to purge MUST result in an empty queue.
  
          RULE:
  
              On transacted channels the server MUST not purge messages
              that have already been sent to a client but not yet
              acknowledged.
  
          RULE:
  
              The server MAY implement a purge queue or log that allows
              system administrators to recover accidentally-purged
              messages.  The server SHOULD NOT keep purged messages in
              the same storage spaces as the live messages since the
              volumes of purged messages may get very large.
  
          PARAMETERS:
              queue: shortstr
  
                  Specifies the name of the queue to purge.  If the
                  queue name is empty, refers to the current queue for
                  the channel, which is the last declared queue.
  
                  RULE:
  
                      If the client did not previously declare a queue,
                      and the queue name in this method is empty, the
                      server MUST raise a connection exception with
                      reply code 530 (not allowed).
  
                  RULE:
  
                      The queue must exist. Attempting to purge a non-
                      existing queue causes a channel exception.
  
              nowait: boolean
  
                  do not send a reply method
  
                  If set, the server will not respond to the method. The
                  client should not wait for a reply method.  If the
                  server could not complete the method it will raise a
                  channel or connection exception.
  
          if nowait is False, returns a message_count