How to use adminRoles?

import { prismaAdapter } from "better-auth/adapters/prisma"
import { PrismaClient } from "@prisma/client"
import { username, admin } from "better-auth/plugins"
import { betterAuth } from "better-auth"
import bcrypt from "bcrypt"

const prisma = new PrismaClient()

export const auth = betterAuth({
  database: prismaAdapter(prisma, {
    provider: "postgresql",
  }),
  appName: "nuxt-app",
  plugins: [
    admin({
      adminRoles: ["admin", "owner"],
      // adminUserIds: ["hOeyOhG7mCwsIUbtI05yHcLSJBId6ckM"],
    }),
    username(),
  ],
  socialProviders: {
    google: {
      clientId: process.env.GOOGLE_CLIENT_ID as string,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET as string,
      prompt: "select_account",
    },
  },
  emailAndPassword: {
    enabled: true,
    password: {
      hash: async (password: string): Promise<string> => {
        const saltRounds = 12
        return await bcrypt.hash(password, saltRounds)
      },
      verify: async (data: {
        password: string
        hash: string
      }): Promise<boolean> => {
        const { password, hash } = data
        return await bcrypt.compare(password, hash)
      },
    },
  },
})