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