Optional Readonlycontent_Optional MIME type of the contents. (Couchbase Lite doesn't use this, except as a hint for whether to compress the contents during sync.)
ReadonlydigestThe unique digest, usually SHA-1, of the blob's contents.
Optional ReadonlylengthLength in bytes of the contents.
Optional ReadonlyrevposUsed internally by Sync Gateway; you can ignore it.
A Blob found in an existing document, whose contents have been saved in the database.