class_docstr: Guest users should only have access to datasources that are associated with a
  dashboard they have access to, and only with that dashboard context present
code: def create_dataset(self):
      with self.create_app().app_context():
          dataset = SqlaTable(
              table_name="dummy_sql_table",
              database=get_example_database(),
              schema=get_example_default_schema(),
              sql="select 123 as intcol, 'abc' as strcol",
          )
          session = db.session
          session.add(dataset)
          session.commit()
  
          yield dataset
  
          # rollback
          session.delete(dataset)
          session.commit()
  
imports: import json
  from unittest.mock import Mock, patch
  import pytest
  from flask import g
  from superset import db, security_manager
  from superset.connectors.sqla.models import SqlaTable
  from superset.daos.dashboard import EmbeddedDashboardDAO
  from superset.exceptions import SupersetSecurityException
  from superset.models.dashboard import Dashboard
  from superset.security.guest_token import GuestTokenResourceType
  from superset.sql_parse import Table
  from superset.utils.core import get_example_default_schema
  from superset.utils.database import get_example_database
  from tests.integration_tests.base_tests import SupersetTestCase
  from tests.integration_tests.fixtures.birth_names_dashboard import load_birth_names_dashboard_with_slices_class_scope, load_birth_names_data
  from tests.integration_tests.fixtures.world_bank_dashboard import load_world_bank_dashboard_with_slices, load_world_bank_dashboard_with_slices_class_scope, load_world_bank_data
label_desc: Use image node_id 1 for calling the TestGuestUserDatasourceAccess obj's underlying member method code with example usage: obj.create_dataset() without return types