code: function () {
        if (!this.recording || this.recording.blank()) return;
        var finalFrame = this.recording.cloneCurrentFrame();
        finalFrame.hands = [];
        finalFrame.fingers = [];
        finalFrame.pointables = [];
        finalFrame.tools = [];
        this.sendImmediateFrame(finalFrame);
      }
docs: if there is existing frame data, sends a frame with nothing in it