array Uint32 [byte; 4]; array Byte32 [byte; 32]; vector Bytes ; option Uint32Opt (Uint32); vector Indexes ; table CKBFSData { indexes: Indexes, checksum: Uint32, content_type: Bytes, filename: Bytes, backlinks: BackLinkVec, } table BackLink { indexes: Indexes, checksum: Uint32, tx_hash: Byte32, } vector BackLinkVec ;