long ret = bindings.ShutdownScript_new_p2wpkh(InternalUtils.check_arr_len(pubkey_hash, 20));
Reference.reachabilityFence(pubkey_hash);
if (ret >= 0 && ret <= 4096) { return null; }
long ret = bindings.ShutdownScript_new_p2wpkh(InternalUtils.check_arr_len(pubkey_hash, 20));
Reference.reachabilityFence(pubkey_hash);
if (ret >= 0 && ret <= 4096) { return null; }