I am trying to develop app with react-native and firebase.
In my app there is two way to loged in (as an user or as an admin)
Here is my question: How can I create a type for admin user?

const handlesignup = () => {
  auth
    .createUserwithEmailAndPassword(email, password)
    .then((userCredentials) => {
      const user = userCredentials.user;
      console.log("Registered in with: ", user.email);
    })
    .catch((err) => alert(err.message));
};
const handelogin = () => {
  auth
    .signInwithEmailAndPassword(email, password)
    .then((userCredentials) => {
      const user = userCredentials.user;
      console.log("Logged in with: ", user.email);
    })
    .catch((err) => alert(err.message));
};