60:     function _rubicall(
61:         CallParams memory _params
62:     ) internal returns (bytes memory) {
63:         // charge fee from feeParams
64:         _chargeFee(_params.feeParams, _params.target);
65: 
66:         (bool _OK, bytes memory _data) = _params.target.call(
67:             bytes.concat(_params.selector, _params.args)
68:         );
69: 
70:         require(_OK, "low-level call to the Rubicon failed");
71: 
72:         return _data;
73:     }
76:     function _rubicallPayable(
77:         CallParams memory _params
78:     ) internal returns (bytes memory) {
79:         // charge fee from feeParams
80:         uint256 _msgValue = _chargeFeePayable(_params.feeParams);
81: 
82:         (bool _OK, bytes memory _data) = _params.target.call{value: _msgValue}(
83:             bytes.concat(_params.selector, _params.args)
84:         );
85: 
86:         require(_OK, "low-level call to the router failed");
87: 
88:         return _data;
89:     }
function test_FeeWrapper_CallsToAccountsNoCodeSucceed() public {
    FeeWrapper.CallParams memory callParams;
    callParams.selector = bytes4(0x01020304);
    callParams.args = abi.encode(uint256(42));
    callParams.target = makeAddr("address with no code");
    callParams.feeParams.totalAmount = 0.1 ether;
    callParams.feeParams.feeAmount = 0.01 ether;
    callParams.feeParams.feeTo = makeAddr("FeeRecipient");

    // Target has no code
    assertEq(callParams.target.code.length, 0);

    // Call succeeds even though the target has no code and no implementation
    feeWrapper.rubicall{value: 0.1 ether}(callParams);
}
