preRender(context, frameState) {
    this.frameState = frameState;
    if (frameState.declutter) {
      return;
    }
    this.dispatchRenderEvent_(RenderEventType.PRERENDER, context, frameState);
  }
@param {CanvasRenderingContext2D} context Context.
@param {import("../../Map.js").FrameState} frameState Frame state.
@protected