struct ExecuteArgs {
  CallParams params;
  address local; // local representation of canonical token
  address[] routers;
  bytes[] routerSignatures;
  uint256 amount;
  uint256 nonce;
  address originSender;
}
// Derive transfer ID based on given arguments.
bytes32 transferId = _getTransferId(_args);
  function _getTransferId(ExecuteArgs calldata _args) private view returns (bytes32) {
    (uint32 tokenDomain, bytes32 tokenId) = s.tokenRegistry.getTokenId(_args.local);
    return _calculateTransferId(_args.params, _args.amount, _args.nonce, tokenId, tokenDomain, _args.originSender);
  }
