How to use the azure-mgmt-eventgrid.azure.mgmt.eventgrid.models.TopicRegenerateKeyRequest function in azure-mgmt-eventgrid

:type resource_group_name: str
        :param topic_name: Name of the topic
        :type topic_name: str
        :param key_name: Key name to regenerate key1 or key2
        :type key_name: str
        :param dict custom_headers: headers that will be added to the request
        :param bool raw: returns the direct response alongside the
         deserialized response
        :param operation_config: :ref:`Operation configuration
         overrides`.
        :return: TopicSharedAccessKeys or ClientRawResponse if raw=true
        :rtype: ~azure.mgmt.eventgrid.models.TopicSharedAccessKeys or
         ~msrest.pipeline.ClientRawResponse
        :raises: :class:`CloudError`
        """
        regenerate_key_request = models.TopicRegenerateKeyRequest(key_name=key_name)

        # Construct URL
        url = self.regenerate_key.metadata['url']
        path_format_arguments = {
            'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str'),
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'topicName': self._serialize.url("topic_name", topic_name, 'str')
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}
        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')

        # Construct headers
        header_parameters = {}