code: def test_collection_move_notloaded(self):
      User, Address = self.classes.User, self.classes.Address
  
      sess = fixture_session()
      a1 = Address(email_address="address1")
      u1 = User(name="jack", addresses=[a1])
  
      u2 = User(name="ed")
      sess.add_all([u1, u2])
      sess.commit()  # everything is expired
  
      u2.addresses.append(a1)
  
      # backref fires
      assert a1.user is u2
  
      # u1.addresses wasn't loaded,
      # so when it loads its correct
      assert a1 not in u1.addresses
      assert a1 in u2.addresses
  
imports: from sqlalchemy import testing
  from sqlalchemy import text
  from sqlalchemy.orm import attributes
  from sqlalchemy.orm import backref
  from sqlalchemy.orm import relationship
  from sqlalchemy.orm import Session
  from sqlalchemy.testing import eq_
  from sqlalchemy.testing import is_
  from sqlalchemy.testing.fixtures import fixture_session
  from test.orm import _fixtures
label_desc: Use image node_id 4 for calling the O2MCollectionTest obj's underlying member method code with example usage: obj.test_collection_move_notloaded() without return types