code: def test_started_with_open_browser():
      from dtale.views import DtaleData
  
      with ExitStack() as stack:
          stack.enter_context(
              mock.patch(
                  "dtale.views.in_ipython_frontend", return_value=True
              )
          )
          instance = DtaleData("9999", "user/root/proxy/9999")
          instance.started_with_open_browser = True
          assert instance.__str__() == ""
          assert instance.started_with_open_browser is False
  
          instance.started_with_open_browser = True
          assert instance.__repr__() == ""
          assert instance.started_with_open_browser is False
  
file_path: dtale/tests/dtale/test_instance.py
imports: from collections import namedtuple
  import mock
  import pandas
  import pytest
  from dtale.dash_application.charts import get_url_parser
  from tests import ExitStack
  from tests.dtale import build_data_inst
label_desc: Use image node_id 6 for calling a global function with example usage: test_started_with_open_browser() without return types