Cloudflare Worker with Hono + D1 + D1-ORM

app.get('/', async (c) => {
  const db = c.env.DB;
});

import { D1Orm, DataTypes, Model } from "d1-orm";

const orm = new D1Orm(env.DB);

const customer = new Model(
    {
        D1Orm: orm,
        tableName: "customers",
        primaryKeys: "id",
        autoIncrement: "id",
    },
    {
        CustomerId: {
            type: DataTypes.INTEGER,
            notNull: true,
        },
        CompanyName: {
            type: DataTypes.STRING,
            notNull: true,
        },
        ContactName: {
            type: DataTypes.STRING,
        },
    }
);

export default customer;

service core:user:cf-api: Uncaught ReferenceError: env is not defined