Typescript - How do you read this in your head?

Question

Trying to get the hang of typescript and it's weird syntaxes.

How do you read the following in your head?

const [user, setUser] = useState<IUser>({name: 'Jon'});

Am I right to say useState takes <IUser> as an input?

Or useState takes an input of <IUser>?

example stolen from: https://stackoverflow.com/a/53650561/9780778