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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _rabbitmq_parameters(self):
 """Return a pika ConnectionParameters object using the configuration from the configuration service. The configuration dictionary should match the parameters for pika.connection.ConnectionParameters and include an extra username and password variable. :rtype: pika.ConnectionParameters """

        kwargs = dict(self._rabbitmq_config)
        kwargs['credentials'] =  pika.PlainCredentials(kwargs['username'],
                                                       kwargs['password'])
        for key in ['username', 'password']:
            del kwargs[key]
        return pika.ConnectionParameters(**kwargs)