code: def test_clear_removes_all_entries(self):
      self.query_params_proxy.clear()
      assert len(self.query_params_proxy) == 0
  
imports: import unittest
  from typing import Dict, List, Union
  from unittest.mock import MagicMock, patch
  import pytest
  from streamlit.runtime.state.query_params import QueryParams
  from streamlit.runtime.state.query_params_proxy import QueryParamsProxy
  from streamlit.runtime.state.safe_session_state import SafeSessionState
  from streamlit.runtime.state.session_state import SessionState
label_desc: Use image node_id 8 for calling the TestQueryParamsProxy obj's underlying member method code with example usage: obj.test_clear_removes_all_entries() without return types