KeyPressed event trigger arguments value is null

I try to use FuseJS to get the key value of . And I found the argument object’s value if Null.

The output of console.log is: Output: {“data”:{}}

<App Theme="Basic">
    <JavaScript>
        var inputKey = function(args){
            console.log(JSON.stringify(args));
        };

        module.exports = {
            inputKey: inputKey,
        }

    </JavaScript>
<TextInput PlaceholderText="input something" PlaceholderColor="#eee" KeyPressed="{inputKey}">
</TextInput>
</App>