Options for handling Google Cloud Storage object storage
class.
Values:
STORAGE_CLASS_UNSPECIFIED (0):
Storage class behavior is unspecified.
STORAGE_CLASS_DESTINATION_BUCKET_DEFAULT (1):
Use the destination bucket's default storage
class.
STORAGE_CLASS_PRESERVE (2):
Preserve the object's original storage class. This is only
supported for transfers from Google Cloud Storage buckets.
REGIONAL and MULTI_REGIONAL storage classes will be mapped
to STANDARD to ensure they can be written to the destination
bucket.
STORAGE_CLASS_STANDARD (3):
Set the storage class to STANDARD.
STORAGE_CLASS_NEARLINE (4):
Set the storage class to NEARLINE.
STORAGE_CLASS_COLDLINE (5):
Set the storage class to COLDLINE.
STORAGE_CLASS_ARCHIVE (6):
Set the storage class to ARCHIVE.
