code: def define_tables(cls, metadata):
      Table(
          "foo",
          metadata,
          Column(
              "id",
              Integer,
              normalize_sequence(config, sa.Sequence("foo_id_seq")),
              primary_key=True,
          ),
          Column("bar", Integer),
          Column("range", Integer),
      )
  
imports: import sqlalchemy
  from sqlalchemy import ForeignKey
  from sqlalchemy import func
  from sqlalchemy import Integer
  from sqlalchemy import testing
  from sqlalchemy.orm import relationship
  from sqlalchemy.testing import config
  from sqlalchemy.testing import eq_
  from sqlalchemy.testing import fixtures
  from sqlalchemy.testing.fixtures import fixture_session
  from sqlalchemy.testing.provision import normalize_sequence
  from sqlalchemy.testing.schema import Column
  from sqlalchemy.testing.schema import Table
  from test.orm import _fixtures
label_desc: Use image node_id 1 for calling the GenerativeQueryTest obj's underlying member method code with example usage: obj.define_tables(cls, metadata) without return types