code: def test_collection_load_from_pending_populated(self, parent_fixture):
      sess, p1, p2, c1, c2 = parent_fixture
      Parent, Child = self.classes("Parent", "Child")
  
      Parent.children.property.load_on_pending = True
      p2 = Parent(id=p1.id)
      sess.add(p2)
      # load should emit since PK is populated
  
      def go():
          assert p2.children
  
      self.assert_sql_count(testing.db, go, 1)
  
imports: from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import String
  from sqlalchemy import testing
  from sqlalchemy.orm import backref
  from sqlalchemy.orm import declarative_base
  from sqlalchemy.orm import relationship
  from sqlalchemy.orm.attributes import instance_state
  from sqlalchemy.testing import AssertsExecutionResults
  from sqlalchemy.testing import expect_warnings
  from sqlalchemy.testing import fixtures
  from sqlalchemy.testing.fixtures import fixture_session
  from sqlalchemy.testing.schema import Column
label_desc: Use image node_id 9 for calling the LoadOnFKsTest obj's underlying member method code with example usage: obj.test_collection_load_from_pending_populated(parent_fixture) without return types