def strftime(format):
Retrieves GUID-marked S3 ACL from object metadata, if present.
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/zope/interface/common/idatetime.py/ITime.strftime--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/gsutil/gslib/translation_helper.py/S3MarkerAclFromObjectMetadata