old_contents: """
  
  Example producer that sends a single message and exits.
  
  You can use `complete_receive.py` to receive the message sent.
  
  """
  from __future__ import absolute_import, unicode_literals
  
  from kombu import Connection, Producer, Exchange, Queue
  
  #: By default messages sent to exchanges are persistent (delivery_mode=2),
  #: and queues and exchanges are durable.
  exchange = Exchange('kombu_demo', type='direct')
  queue = Queue('kombu_demo', exchange, routing_key='kombu_demo')
  
  
  with Connection('amqp://guest:guest@localhost:5672//') as connection:
  
      #: Producers are used to publish messages.
      #: a default exchange and routing key can also be specifed
      #: as arguments the Producer, but we rather specify this explicitly
      #: at the publish call.
      producer = Producer(connection)
  
      #: Publish the message using the json serializer (which is the default),
      #: and zlib compression.  The kombu consumer will automatically detect
      #: encoding, serialization and compression used and decode accordingly.
      producer.publish({'hello': 'world'},
                       exchange=exchange,
                       routing_key='kombu_demo',
                       serializer='json', compression='zlib')
  
new_contents: """
  
  Example producer that sends a single message and exits.
  
  You can use `complete_receive.py` to receive the message sent.
  
  """
  from __future__ import absolute_import, unicode_literals
  
  from kombu import Connection, Producer, Exchange, Queue
  
  #: By default messages sent to exchanges are persistent (delivery_mode=2),
  #: and queues and exchanges are durable.
  exchange = Exchange('kombu_demo', type='direct')
  queue = Queue('kombu_demo', exchange, routing_key='kombu_demo')
  
  
  with Connection('amqp://guest:guest@localhost:5672//') as connection:
  
      #: Producers are used to publish messages.
      #: a default exchange and routing key can also be specified
      #: as arguments the Producer, but we rather specify this explicitly
      #: at the publish call.
      producer = Producer(connection)
  
      #: Publish the message using the json serializer (which is the default),
      #: and zlib compression.  The kombu consumer will automatically detect
      #: encoding, serialization and compression used and decode accordingly.
      producer.publish({'hello': 'world'},
                       exchange=exchange,
                       routing_key='kombu_demo',
                       serializer='json', compression='zlib')
  
subject: Fix typo in example