code: public static PayloadFetcher fetcher(final String pathAccountSid, 
                                           final String pathReferenceSid, 
                                           final String pathAddOnResultSid, 
                                           final String pathSid) {
          return new PayloadFetcher(pathAccountSid, pathReferenceSid, pathAddOnResultSid, pathSid);
      }
docs: Create a PayloadFetcher to execute fetch.
  
  @param pathAccountSid The SID of the Account that created the resource to
  fetch
  @param pathReferenceSid The SID of the recording to which the AddOnResult
  resource that contains the payload to fetch belongs
  @param pathAddOnResultSid The SID of the AddOnResult to which the payload to
  fetch belongs
  @param pathSid The unique string that identifies the resource to fetch
  @return PayloadFetcher capable of executing the fetch