class_docstr: Test that the 'hasparent' flag gets flipped to False
  only if we're sure this object is the real parent.
  
  In ambiguous cases a stale data exception is
  raised.
class_docstr_tok: ["Test","that","the","'hasparent","'","flag","gets","flipped","to","False","only","if","we","'re","sure","this","object","is","the","real","parent",".","In","ambiguous","cases","a","stale","data","exception","is","raised","."]
code: def test_fresh_state_positive(self):
      s, u1, a1 = self._fixture()
  
      self._assert_hasparent(a1)
  
imports: from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import testing
  from sqlalchemy.orm import attributes
  from sqlalchemy.orm import exc
  from sqlalchemy.orm import relationship
  from sqlalchemy.testing import assert_raises_message
  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
  from sqlalchemy.testing.util import gc_collect
label_desc: Use image node_id 12 for calling the ParentRemovalTest obj's underlying member method code with example usage: obj.test_fresh_state_positive() without return types