pub unsafe extern "C" fn rocksdb_writebatch_iterate( batch: DBWriteBatch, state: *mut c_void, put_fn: extern "C" fn(state: *mut c_void, k: *const u8, klen: size_t, v: *const u8, vlen: size_t), deleted_fn: extern "C" fn(state: *mut c_void, k: *const u8, klen: size_t))
