docs: public StatReceiverResponse statReceiver(StatReceiverRequest request) {
          checkNotNull(request, "object request should not be null.");
          assertStringNotNullOrEmpty(request.getPhoneNumber(), "object phoneNumber should not be null or empty.");
  
          InternalRequest internalRequest =
                  this.createRequest("receiver", request, HttpMethodName.GET, request.getPhoneNumber());
          return this.invokeHttpClient(internalRequest, StatReceiverResponse.class);
      }