code: def test_clear_removes_all_query_params(self):
      self.query_params.clear()
      assert len(self.query_params) == 0
      message = self.get_message_from_queue(0)
      assert "" == message.page_info_changed.query_string
  
imports: import pytest
  from streamlit.errors import StreamlitAPIException
  from streamlit.runtime.state.query_params import QueryParams
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 32 for calling the QueryParamsMethodTests obj's underlying member method code with example usage: obj.test_clear_removes_all_query_params() without return types