```\n      id = connext.xcall(            // <------ relayer fee should be payed here\n        _recipientDomain, // destination domain\n        _recipient, // to\n        address(token), // asset\n        _recipient, // delegate, only required for self-execution + slippage\n        _amount, // amount\n        0, // slippage -- assumes no pools on connext\n        bytes('') // calldata\n      );\n```\n