code: def increment(key, delta=1, host=DEFAULT_HOST, port=DEFAULT_PORT):
      '''
      Increment the value of a key
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' memcached.increment <key>
          salt '*' memcached.increment <key> 2
      '''
      conn = _connect(host, port)
      _check_stats(conn)
      cur = get(key)
  
      if cur is None:
          raise CommandExecutionError('Key \'{0}\' does not exist'.format(key))
      elif not isinstance(cur, six.integer_types):
          raise CommandExecutionError(
              'Value for key \'{0}\' must be an integer to be '
              'incremented'.format(key)
          )
  
      try:
          return conn.incr(key, delta)
      except ValueError:
          raise SaltInvocationError('Delta value must be an integer'f increment(key, delta=1, host=DEFAULT_HOST, port=DEFAULT_PORT):
      '''
      Increment the value of a key
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' memcached.increment <key>
          salt '*' memcached.increment <key> 2
      '''
      conn = _connect(host, port)
      _check_stats(conn)
      cur = get(key)
  
      if cur is None:
          raise CommandExecutionError('Key \'{0}\' does not exist'.format(key))
      elif not isinstance(cur, six.integer_types):
          raise CommandExecutionError(
              'Value for key \'{0}\' must be an integer to be '
              'incremented'.format(key)
          )
  
      try:
          return conn.incr(key, delta)
      except ValueError:
          raise SaltInvocationError('Delta value must be an integer')
docs: Increment the value of a key
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' memcached.increment <key>
          salt '*' memcached.increment <key> 2