planetscale: how to index col using drizzle?

import {
  varchar,
  text,
  mysqlTable,
  timestamp,
} from "drizzle-orm/mysql-core";

export const users = mysqlTable(
  "users",
  {
    id: varchar("id", { length: 16 }).primaryKey(),
    email: varchar("email", { length: 320 }),
    name: text("name").notNull(),
    createdAt: timestamp("created_at").defaultNow().notNull(),
    updatedAt: timestamp("updated_at").defaultNow().notNull(),
  },
  (table) => ({
    // how to index email?
  })
);