code: def setup_classes(cls):
      class Item(cls.Basic):
          def __init__(self, name):
              self.name = name
  
          def __repr__(self):
              return "Item id=%d name=%s keywordassoc=%r" % (
                  self.item_id,
                  self.name,
                  self.keywords,
              )
  
      class Keyword(cls.Basic):
          def __init__(self, name):
              self.name = name
  
          def __repr__(self):
              return "Keyword id=%d name=%s" % (
                  self.keyword_id,
                  self.name,
              )
  
      class KeywordAssociation(cls.Basic):
          def __init__(self, keyword, data):
              self.keyword = keyword
              self.data = data
  
          def __repr__(self):
              return (
                  "KeywordAssociation itemid=%d keyword=%r data=%s"
                  % (
                      self.item_id,
                      self.keyword,
                      self.data,
                  )
              )
  
file_path: sqlalchemy/test/orm/test_association.py
imports: from sqlalchemy import ForeignKey
  from sqlalchemy import func
  from sqlalchemy import Integer
  from sqlalchemy import select
  from sqlalchemy import String
  from sqlalchemy.orm import relationship
  from sqlalchemy.testing import eq_
  from sqlalchemy.testing import fixtures
  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 2 for calling the AssociationTest obj's underlying member method code with example usage: obj.setup_classes(cls) and returns: unknown, unknown, unknown