def _millis(when):
    micros = _microseconds_from_datetime(when)
    return micros // 1000
Adds some useful headers to the given HttpResponse object:
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/_helpers.py/_millis--crossover with--dataset/ETHPy150Open django/django/django/utils/cache.py/patch_response_headers