code: def test_instance_prop_reinitializes_if_reset(self):
      conn = MockConnection("my_mock_connection")
      conn._raw_instance = None
  
      assert isinstance(conn._instance, MockRawConnection)
  
imports: import os
  import unittest
  from unittest.mock import PropertyMock, mock_open, patch
  import pytest
  import streamlit
  from streamlit.connections import BaseConnection
  from streamlit.runtime.secrets import AttrDict
label_desc: Use image node_id 11 for calling the BaseConnectionDefaultMethodTests obj's underlying member method code with example usage: obj.test_instance_prop_reinitializes_if_reset() without return types