A durable upload that can be reused by outbound media parts. No fixed beta expiry is promised.
byte_size: number
Exact byte count stored.
formatint64
kind: "image" or "video" or "audio" or 2 more
The media kind chosen at upload. A send using this handle must use the same kind.
One of the following:
"image"
"video"
"audio"
"document"
"sticker"
mime_type: string
The normalized media type stored with the bytes.
sha256: string
Lowercase hexadecimal SHA-256 over the exact stored bytes.
upload_ref: string
Our reusable handle. It always begins upload. and is supplied as a media part’s upload_ref. It has no fixed beta expiry or scheduled pruning, but is not permanent and may be removed by account deletion or offboarding.
