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.
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.