getFolders method

Will get a collection of PcoServicesFolder objects (expecting many) using a path like this: https://api.planningcenteronline.com/services/v2/folders/1/folders

Implementation

Future<PcoCollection<PcoServicesFolder>> getFolders(
    {PcoServicesFolderQuery? query}) async {
  query ??= PcoServicesFolderQuery();
  var url = '$apiEndpoint/folders';
  return PcoCollection.fromApiCall<PcoServicesFolder>(url,
      query: query, apiVersion: apiVersion);
}