}
  }
  function mountFiberRecursively(
    fiber: Fiber,
    parentFiber: Fiber | null,
    traverseSiblings: boolean,
    traceNearestHostComponentUpdate: boolean,
  ) {
    if (__DEBUG__) {
      debug('mountFiberRecursively()', fiber, parentFiber);
    }
     If we have the tree selection from previous reload, try to match this Fiber.
     Also remember whether to do the same for siblings.
    const mightSiblingsBeOnTrackedPath = updateTrackedPathStateBeforeMount(
      fiber,
    );
    const shouldIncludeInTree = !shouldFilterFiber(fiber);
    if (shouldIncludeInTree) {
      recordMount(fiber, parentFiber);
    }
    if (traceUpdatesEnabled) {
      if (traceNearestHostComponentUpdate) {
        const elementType = getElementTypeForFiber(fiber);
         If 
        if (elementType === ElementTypeHostComponent) {
          traceUpdatesForNodes.add(fiber.stateNode);
          traceNearestHostComponentUpdate = false;
        }
      }
       We