ap) {
    },

    addContainersToTrackMap(containerToTrackMap) {
    },

    addIntersectingEventsInRangeToSelection(
        loVX, hiVX, loVY, hiVY, selection) {
      const pixelRatio = window.devicePixelRatio || 1;
      const dt = this.viewport.currentDisplayTransform;
      const viewPixWidthWorld = dt.xViewVectorToWorld(1);
      const loWX = dt.xViewToWorld(loVX * pixelRatio);
      const hiWX = dt.xViewToWorld(hiVX * pixelRatio);

      const clientRect = this.getBoundingClientRect();
      const a 