OptionalIDIf the principal is an Amazon Web Services account, it provides the Canonical User ID. If the principal is an IAM User, it provides a user ARN value.
Directory buckets - If the principal is an Amazon Web Services account, it provides the Amazon Web Services account ID. If the principal is an IAM User, it provides a user ARN value.
OptionalDisplayThis functionality is not supported for directory buckets.
Container element that identifies who initiated the multipart upload.