def METHOD_NAME(
    self,
    location,  # type: str
    **kwargs  # type: Any
):
    # type: (...) -> Iterable["_models.EndpointServicesListResult"]
    """List what values of endpoint services are available for use.
    :param location: The location to check available endpoint services.
    :type location: str
    :keyword callable cls: A custom type or function that will be passed the direct response
    :return: An iterator like instance of either EndpointServicesListResult or the result of cls(response)
    :rtype: ~azure.core.paging.ItemPaged[~azure.mgmt.network.v2021_03_01.models.EndpointServicesListResult]
    :raises: ~azure.core.exceptions.HttpResponseError
    """
    cls = kwargs.pop('cls', None)  # type: ClsType["_models.EndpointServicesListResult"]
    error_map = {
        401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
    }
    error_map.update(kwargs.pop('error_map', {}))
    api_version = "2021-03-01"
    accept = "application/json"
    def prepare_request(next_link=None):
        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
        if not next_link:
            # Construct URL
            url = self.METHOD_NAME.metadata['url']  # type: ignore
            path_format_arguments = {
                'location': self._serialize.url("location", location, 'str'),
                'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
            }
            url = self._client.format_url(url, **path_format_arguments)
            # Construct parameters
            query_parameters = {}  # type: Dict[str, Any]
            query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
            request = self._client.get(url, query_parameters, header_parameters)
        else:
            url = next_link
            query_parameters = {}  # type: Dict[str, Any]
            request = self._client.get(url, query_parameters, header_parameters)
        return request
    def extract_data(pipeline_response):
        deserialized = self._deserialize('EndpointServicesListResult', pipeline_response)
        list_of_elem = deserialized.value
        if cls:
            list_of_elem = cls(list_of_elem)
        return deserialized.next_link or None, iter(list_of_elem)
    def get_next(next_link=None):
        request = prepare_request(next_link)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response
        if response.status_code not in [200]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
        return pipeline_response
    return ItemPaged(
        get_next, extract_data
    )