Function librocksdb_sys::rocksdb_transaction_get_for_update

pub unsafe extern "C" fn rocksdb_transaction_get_for_update(
    txn: *mut rocksdb_transaction_t,
    options: *const rocksdb_readoptions_t,
    key: *const c_char,
    klen: usize,
    vlen: *mut usize,
    exclusive: c_uchar,
    errptr: *mut *mut c_char,
) -> *mut c_char