const callback = function()

in src/CallbackContext.js [41:56]


  const callback = function (err, result) {
    BeforeExitListener.reset();
    if (err !== undefined && err !== null) {
      postError(err, scheduleNext);
    } else {
      if (!waitForEmptyEventLoop) {
        complete(result, scheduleNext);
      } else {
        BeforeExitListener.set(() => {
          setImmediate(() => {
            complete(result, scheduleNext);
          });
        });
      }
    }
  };