code: def get_client(app: FastAPI):
      client = TestClient(app)
      return client
  
file_path: fastapi/tests/test_tutorial/test_request_files/test_tutorial002_an_py39.py
imports: import pytest
  from dirty_equals import IsDict
  from fastapi import FastAPI
  from fastapi.testclient import TestClient
  from fastapi.utils import match_pydantic_error_url
  from ...utils import needs_py39
label_desc: Use image node_id 2 for calling a global function with example usage: get_client(app) and returns: client