Access local storage in Chrome Extension

Question

I want to access local storage in chrome extension based on manifest version 3

I am having a local-storage item with key as name now i want to console the name every time it changes in local storage in chrome extension

earlier it was used to be like this

chrome.storage.onChanged.addListener(function (changes, namespace) {
chrome.action.setBadgeText({text:changes.total.newValue.toString();
chrome.action.setBadgeBackgroundColor({color: '#9688F1'});
});

But not working with version 3

what can be done to do this