<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_key_pair(self, alias_name):
 """ Retrieves the public and private key pair associated with the specified alias name. Args: alias_name: Key pair associated with the RabbitMQ Returns: dict: RabbitMQ certificate """

        uri = self.URI + "/keypair/" + alias_name
        return self._client.get(uri)