code: function startHoldGesture(sense) {
          sense.triggerEvent(GST_HOLD_START, {
              clientX: sense.finger1.clientX,
              clientY: sense.finger1.clientY,
              pageX: sense.finger1.pageX,
              pageY: sense.finger1.pageY,
              nbFinger: sense.fingers.length
          });
      }
docs: Gesture utilities