code: def test_allowed_and_blocked_paths(self):
      with tempfile.NamedTemporaryFile(
          suffix=".jpg", delete=False
      ) as tmp_file:
          io = gr.Interface(lambda s: s.name, gr.File(), gr.File())
          app, _, _ = io.launch(
              prevent_thread_lock=True,
              allowed_paths=[os.path.dirname(tmp_file.name)],
          )
          client = TestClient(app)
          file_response = client.get(f"/file={tmp_file.name}")
          assert file_response.status_code == 200
      io.close()
      os.remove(tmp_file.name)
  
      with tempfile.NamedTemporaryFile(
          suffix=".jpg", delete=False
      ) as tmp_file:
          io = gr.Interface(lambda s: s.name, gr.File(), gr.File())
          app, _, _ = io.launch(
              prevent_thread_lock=True,
              allowed_paths=[os.path.dirname(tmp_file.name)],
              blocked_paths=[os.path.dirname(tmp_file.name)],
          )
          client = TestClient(app)
          file_response = client.get(f"/file={tmp_file.name}")
          assert file_response.status_code == 403
      io.close()
      os.remove(tmp_file.name)
  
imports: import functools
  import os
  import tempfile
  from contextlib import asynccontextmanager, closing
  from unittest import mock
  import gradio_client
  import numpy
  import pandas
  import pytest
  import starlette.routing
  from fastapi import FastAPI
  from fastapi.testclient import TestClient
  from gradio_client import media_data
  import gradio
  from gradio import Blocks, Button, Interface, Number, Textbox, close_all, routes, wasm_utils
  from gradio.route_utils import FnIndexInferError
label_desc: Use image node_id 15 for calling the TestRoutes obj's underlying member method code with example usage: obj.test_allowed_and_blocked_paths() without return types