getPledges method

Will get a collection of PcoGivingPledge objects (expecting many) using a path like this: https://api.planningcenteronline.com/giving/v2/pledge_campaigns/1/pledges

Implementation

Future<PcoCollection<PcoGivingPledge>> getPledges(
    {PcoGivingPledgeQuery? query}) async {
  query ??= PcoGivingPledgeQuery();
  var url = '$apiEndpoint/pledges';
  return PcoCollection.fromApiCall<PcoGivingPledge>(url,
      query: query, apiVersion: apiVersion);
}