}
      child = child.sibling;
    }
  }
  function recordProfilingDurations(fiber: Fiber) {
    const id = getFiberID(getPrimaryFiber(fiber));
    const {actualDuration, treeBaseDuration} = fiber;
    idToTreeBaseDurationMap.set(id, treeBaseDuration || 0);
    if (isProfiling) {
      const {alternate} = fiber;
       It'
       bec
      if (
        alternate == null ||
        treeBaseDuration !== alternate.treeBaseDuration
      ) {
         Tre
         So 
        const convertedTreeBaseDuration = Math.floor(
          (treeBaseDuration || 0) * 1000,
        );
        pushOperation(TREE_OPERATION_UPDATE_TREE_BASE_DURATION);
        pushOperation(id);
        pushOperation(convertedTreeBaseDuration);
      }
      if (alternate == null || didFiberRender(alternate, fiber)) {
        if (actualDuration != null) {
           The 
           Thi
           The