How to use the tblib.handler.ResponseCode function in tblib

def delete_cart_product(id):
    """删除购物车商品
    """

    cart_product = CartProduct.query.filter(CartProduct.id == id).first()
    if cart_product is None:
        return json_response(ResponseCode.NOT_FOUND)

    session.delete(cart_product)
    session.commit()

    return json_response(cart_product=CartProductSchema().dump(cart_product))

def delete_order_product(order_id, product_id):
    order_product = OrderProduct.query.filter(and_(
        OrderProduct.order_id == order_id, OrderProduct.product_id == product_id)).first()
    if order_product is None:
        return json_response(ResponseCode.NOT_FOUND)
    session.delete(order_product)
    session.commit()

    return json_response(order_product=OrderProductSchema().dump(order_product))

def product_info(id):
    """查询商品
    """

    product = Product.query.get(id)
    if product is None:
        return json_response(ResponseCode.NOT_FOUND)

    return json_response(product=ProductSchema().dump(product))

def address_info(id):
    """查询地址
    """

    address = Address.query.get(id)
    if address is None:
        return json_response(ResponseCode.NOT_FOUND)

    return json_response(address=AddressSchema().dump(address))