list method
Lists notification configs.
Request parameters:
parent - Required. The name of the parent in which to list the
notification configurations. Its format is
"organizations/[organization_id]", "folders/[folder_id]", or
"projects/[project_id]".
Value must have pattern ^projects/\[^/\]+$.
pageSize - The maximum number of results to return in a single response.
Default is 10, minimum is 1, maximum is 1000.
pageToken - The value returned by the last
ListNotificationConfigsResponse; indicates that this is a continuation
of a prior ListNotificationConfigs call, and that the system should
return the next page of data.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a ListNotificationConfigsResponse.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<ListNotificationConfigsResponse> list(
  core.String parent, {
  core.int? pageSize,
  core.String? pageToken,
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if (pageSize != null) 'pageSize': ['${pageSize}'],
    if (pageToken != null) 'pageToken': [pageToken],
    if ($fields != null) 'fields': [$fields],
  };
  final url_ =
      'v1/' + core.Uri.encodeFull('$parent') + '/notificationConfigs';
  final response_ = await _requester.request(
    url_,
    'GET',
    queryParams: queryParams_,
  );
  return ListNotificationConfigsResponse.fromJson(
      response_ as core.Map<core.String, core.dynamic>);
}