getCampus method

Will get a collection of PcoPeopleCampus objects (expecting many) using a path like this: https://api.planningcenteronline.com/people/v2/lists/1/campus

Implementation

Future<PcoCollection<PcoPeopleCampus>> getCampus(
    {PcoPeopleCampusQuery? query}) async {
  query ??= PcoPeopleCampusQuery();
  var url = '$apiEndpoint/campus';
  return PcoCollection.fromApiCall<PcoPeopleCampus>(url,
      query: query, apiVersion: apiVersion);
}