code: def default_rls_rule(self):
      return {
          "dataset": self.get_table(name="birth_names").id,
          "clause": "name = 'Alice'",
      }
  
imports: import re
  from typing import Any, Optional
  from unittest import mock
  import pytest
  from flask import g
  import json
  import prison
  from superset import db, security_manager, app
  from superset.connectors.sqla.models import RowLevelSecurityFilter, SqlaTable
  from superset.security.guest_token import GuestTokenResourceType, GuestUser
  from flask_babel import lazy_gettext
  from flask_appbuilder.models.sqla import filters
  from ..conftest import with_config
  from ..base_tests import SupersetTestCase
  from tests.integration_tests.fixtures.birth_names_dashboard import load_birth_names_dashboard_with_slices, load_birth_names_data
  from tests.integration_tests.fixtures.energy_dashboard import load_energy_table_with_slice, load_energy_table_data
  from tests.integration_tests.fixtures.unicode_dashboard import UNICODE_TBL_NAME, load_unicode_dashboard_with_slice, load_unicode_data
label_desc: Use image node_id 1 for calling the GuestTokenRowLevelSecurityTests obj's underlying member method code with example usage: obj.default_rls_rule() and returns: dict