pub unsafe extern "C" fn rocksdb_optimistictransactiondb_open(
options: *const rocksdb_options_t,
name: *const c_char,
errptr: *mut *mut c_char
) -> *mut rocksdb_optimistictransactiondb_t
pub unsafe extern "C" fn rocksdb_optimistictransactiondb_open(
options: *const rocksdb_options_t,
name: *const c_char,
errptr: *mut *mut c_char
) -> *mut rocksdb_optimistictransactiondb_t