Using as an ES module

Do you have any suggestions or project updates on how to use this library as an ES module?

I try 
````
import {sha1} from "sha.js"

var hash = sha1("sha1").update("Hello World!").digest("hex");
````

but always get a message like 
````
TypeError: Cannot read properties of undefined (reading 'init')
    at Sha (D:\Documents\code\dvb-i-tools.maint\node_modules\sha.js\sha.js:22:7)
````