How to check if user email is already registered in Auth database

import { ID } from "appwrite";
import { account } from "$lib/appwrite";

const createUserService = () => {
    async function register(email: string) {
        try {
            await account.createMagicURLToken(ID.unique(), email);
        } catch (error: any) {
            console.log(error);
            throw new Error(error);
        }
    }

    return {
        register
    };
};

const userService = createUserService();

export default userService;

// $lib/appwrite/index.ts

import { Account, Client, Databases } from "appwrite";

const APPWRITE_ENDPOINT = import.meta.env.VITE_APPWRITE_ENDPOINT;
const APPWRITE_PROJECT_ID = import.meta.env.VITE_APPWRITE_PROJECT_ID;

const client = new Client().setEndpoint(APPWRITE_ENDPOINT).setProject(APPWRITE_PROJECT_ID);

export const account = new Account(client);
export const databases = new Databases(client);