code: @Override
      protected void cancelFaxJobImpl(FaxJob faxJob)
      {
          //create HTTP request
          HTTPRequest httpRequest=this.createCancelFaxJobHTTPRequest(faxJob);
          
          //submit HTTP request
          this.submitHTTPRequest(faxJob,httpRequest,FaxActionType.CANCEL_FAX_JOB);
      }
docs: This function will cancel an existing fax job.
  
  @param   faxJob
  The fax job object containing the needed information