getResource method
Will get a collection of PcoCalendarResource objects (expecting one)
using a path like this: https://api.planningcenteronline.com/calendar/v2/event_resource_requests/1/resource
Implementation
Future<PcoCollection<PcoCalendarResource>> getResource(
{PcoCalendarResourceQuery? query}) async {
query ??= PcoCalendarResourceQuery();
var url = '$apiEndpoint/resource';
return PcoCollection.fromApiCall<PcoCalendarResource>(url,
query: query, apiVersion: apiVersion);
}