getLocation method
Will get a collection of PcoGroupsLocation objects (expecting one)
using a path like this: https://api.planningcenteronline.com/groups/v2/events/1/location
Implementation
Future<PcoCollection<PcoGroupsLocation>> getLocation(
{PcoGroupsLocationQuery? query}) async {
query ??= PcoGroupsLocationQuery();
var url = '$apiEndpoint/location';
return PcoCollection.fromApiCall<PcoGroupsLocation>(url,
query: query, apiVersion: apiVersion);
}