getAssignee method
Will get a collection of PcoPeoplePerson objects (expecting one)
using a path like this: https://api.planningcenteronline.com/people/v2/people/1/workflow_cards/1/assignee
Implementation
Future<PcoCollection<PcoPeoplePerson>> getAssignee(
{PcoPeoplePersonQuery? query}) async {
query ??= PcoPeoplePersonQuery();
var url = '$apiEndpoint/assignee';
return PcoCollection.fromApiCall<PcoPeoplePerson>(url,
query: query, apiVersion: apiVersion);
}