code: def test_proxy_url(self):
      demo = gr.load("spaces/gradio/test-loading-examplesv4-sse")
      assert all(
          c["props"]["proxy_url"]
          == "https://gradio-test-loading-examplesv4-sse.hf.space/"
          for c in demo.get_config_file()["components"]
      )
  
imports: import os
  import tempfile
  import textwrap
  import warnings
  from pathlib import Path
  from unittest.mock import MagicMock, patch
  import pytest
  from fastapi.testclient import TestClient
  from gradio_client import media_data
  from huggingface_hub import HfFolder
  import gradio
  from gradio.context import Context
  from gradio.exceptions import GradioVersionIncompatibleError, InvalidApiNameError
  from gradio.external import TooManyRequestsError, cols_to_rows, get_tabular_examples
label_desc: Use image node_id 3 for calling the TestLoadInterfaceWithExamples obj's underlying member method code with example usage: obj.test_proxy_url() without return types