Argument of type is not assignable

Argument of type '() => RequestEvent<Partial<Record<string, string>>, string | null>' is not assignable to parameter of type '() => Promise<RequestEvent<Partial<Record<string, string>>, string | null>>'.
  Type 'RequestEvent<Partial<Record<string, string>>, string | null>' is missing the following properties from type 'Promise<RequestEvent<Partial<Record<string, string>>, string | null>>': then, catch, finally, [Symbol.toStringTag]ts(2345)

import { betterAuth } from 'better-auth';
import { twoFactor } from 'better-auth/plugins';
import { sveltekitCookies } from 'better-auth/svelte-kit';
import { getRequestEvent } from "$app/server";

export const auth = betterAuth({
    plugins: [twoFactor(), sveltekitCookies(getRequestEvent)],
...