def _async_warmup(self, inst):
    _THREAD_POOL.submit(self._warmup, inst)
Sends a test request to see if key is locked out.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/devappserver2/server.py/AutoScalingServer._async_warmup--crossover with--dataset/ETHPy150Open nii-cloud/dodai-compute/nova/tests/api/ec2/test_middleware.py/LockoutTestCase._is_locked_out