code: def client(request):
      app_path = os.path.join(
          os.path.dirname(__file__), f"{request.param}"
      )
      sys.path.insert(0, app_path)
      import app
  
      app = reload(app)
      _app = app.app
      _app.testing = True
      sys.path.remove(app_path)
      client = _app.test_client()
      client._example = request.param
      return client
  
file_path: apiflask/examples/test_examples.py
imports: import os
  import sys
  from importlib import reload
  import flask_sqlalchemy
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: client(request) and returns: client