code: def teardown_test(self):
      Base.metadata.drop_all(testing.db)
  
imports: from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import String
  from sqlalchemy import testing
  from sqlalchemy.orm import backref
  from sqlalchemy.orm import declarative_base
  from sqlalchemy.orm import relationship
  from sqlalchemy.orm.attributes import instance_state
  from sqlalchemy.testing import AssertsExecutionResults
  from sqlalchemy.testing import expect_warnings
  from sqlalchemy.testing import fixtures
  from sqlalchemy.testing.fixtures import fixture_session
  from sqlalchemy.testing.schema import Column
label_desc: Use image node_id 2 for calling the FlushOnPendingTest obj's underlying member method code with example usage: obj.teardown_test() without return types