code: def _basic_get_ok(self, args, msg):
          
          delivery_tag = args.read_longlong()
          redelivered = args.read_bit()
          exchange = args.read_shortstr()
          routing_key = args.read_shortstr()
          message_count = args.read_long()
  
          msg.channel = self
          msg.delivery_info = {
              'delivery_tag': delivery_tag,
              'redelivered': redelivered,
              'exchange': exchange,
              'routing_key': routing_key,
              'message_count': message_count
          }
          return msg
docs: Provide client with a message
  
          This method delivers a message to the client following a get
          method.  A message delivered by 'get-ok' must be acknowledged
          unless the no-ack option was set in the get method.
  
          PARAMETERS:
              delivery_tag: longlong
  
                  server-assigned delivery tag
  
                  The server-assigned and channel-specific delivery tag
  
                  RULE:
  
                      The delivery tag is valid only within the channel
                      from which the message was received.  I.e. a client
                      MUST NOT receive a message on one channel and then
                      acknowledge it on another.
  
                  RULE:
  
                      The server MUST NOT use a zero value for delivery
                      tags.  Zero is reserved for client use, meaning "all
                      messages so far received".
  
              redelivered: boolean
  
                  message is being redelivered
  
                  This indicates that the message has been previously
                  delivered to this or another client.
  
              exchange: shortstr
  
                  Specifies the name of the exchange that the message
                  was originally published to.  If empty, the message
                  was published to the default exchange.
  
              routing_key: shortstr
  
                  Message routing key
  
                  Specifies the routing key name specified when the
                  message was published.
  
              message_count: long
  
                  number of messages pending
  
                  This field reports the number of messages pending on
                  the queue, excluding the message being delivered.
                  Note that this figure is indicative, not reliable, and
                  can change arbitrarily as messages are added to the
                  queue and removed by other clients.