getAnniversaryCouples method

Will get a collection of PcoPeopleAnniversaryCouple objects (expecting many) using a path like this: https://api.planningcenteronline.com/people/v2/anniversary_couples

Implementation

Future<PcoCollection<PcoPeopleAnniversaryCouple>> getAnniversaryCouples(
    {PcoPeopleAnniversaryCoupleQuery? query}) async {
  query ??= PcoPeopleAnniversaryCoupleQuery();
  var url = '$apiEndpoint/anniversary_couples';
  return PcoCollection.fromApiCall<PcoPeopleAnniversaryCouple>(url,
      query: query, apiVersion: apiVersion);
}