@property
  def num_outstanding_instance_requests(self):
    with self._condition:
      return self._num_outstanding_instance_requests
Test that backref 'initiator' catching goes against
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/devappserver2/server.py/AutoScalingServer.num_outstanding_instance_requests--crossover with--dataset/ETHPy150Open zzzeek/sqlalchemy/test/orm/test_attributes.py/BackrefTest.test_symmetric_o2o_inheritance