如何从回调内部返回webRequest

Question

我要在webRequest API中添加一个eventListener，在其回调中，我要调用存储API来检查值。如何从存储API内部响应webRequest API？

    chrome.webRequest.onBeforeRequest.addListener(
        async function(details) {
          console.log('from first callback');
          await chrome.storage.sync.get('disabled', function (value) {
            console.log('from inside of second callback');
            if (value.disabled) {
              console.log('returned false')
              return { cancel: false } // this should return from the function (details) level
            } else {
              console.log('returned true')
              return { cancel: true }
            }
          })
          console.log('still from first')
        },
        {urls: [
          "myurl"
        ]},
        ["blocking"]);

我听过一些关于诺言的事情，但是我无法弄清楚。我该如何实现？