code: def on_deployment():
      if not TEST_DIR or not os.path.exists(TEST_DIR):
          return
      deployment_file = os.path.join(
          TEST_DIR, f"deployment-{get_uid()}.txt"
      )
      with open(deployment_file, "w"):
          pass
  
imports: from __future__ import annotations
  import asyncio
  import os
  import typing
  from typing import TYPE_CHECKING
  import numpy
  import pandas
  import pydantic
  from fastapi import FastAPI
  from PIL.Image import Image
  from PIL.Image import fromarray
  from starlette.requests import Request
  import bentoml
  from bentoml.io import JSON
  from bentoml.io import File
  from bentoml.io import Image
  from bentoml.io import Multipart
  from bentoml.io import NumpyNdarray
  from bentoml.io import PandasDataFrame
  from bentoml.io import Text
label_desc: Use image node_id 7 for calling a global function with example usage: on_deployment() without return types