code: def define_tables(cls, metadata):
      Table(
          "users",
          metadata,
          Column(
              "id",
              Integer,
              primary_key=True,
              test_needs_autoincrement=True,
          ),
          Column("name", String(50)),
          test_needs_fk=True,
      )
      Table(
          "addresses",
          metadata,
          Column(
              "id",
              Integer,
              primary_key=True,
              test_needs_autoincrement=True,
          ),
          Column("email", String(50)),
          Column("user_id", Integer, ForeignKey("users.id")),
          test_needs_fk=True,
      )
      Table(
          "imhandles",
          metadata,
          Column(
              "id",
              Integer,
              primary_key=True,
              test_needs_autoincrement=True,
          ),
          Column("user_id", Integer),
          Column("network", String(50)),
          Column("handle", String(50)),
          test_needs_fk=True,
      )
  
imports: from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import MetaData
  from sqlalchemy import String
  from sqlalchemy import testing
  from sqlalchemy.orm import clear_mappers
  from sqlalchemy.orm import decl_api
  from sqlalchemy.orm import relationship
  from sqlalchemy.testing import assert_raises
  from sqlalchemy.testing import eq_
  from sqlalchemy.testing import fixtures
  from sqlalchemy.testing.entities import ComparableEntity
  from sqlalchemy.testing.entities import ComparableMixin
  from sqlalchemy.testing.fixtures import fixture_session
  from sqlalchemy.testing.schema import Column
  from sqlalchemy.testing.schema import Table
label_desc: Use image node_id 1 for calling the DeclarativeReflectionTest obj's underlying member method code with example usage: obj.define_tables(cls, metadata) without return types