Throwing exception

Is it possible to catch exception during incorrect gp value?
```
let value = ' linear-gradient(to right, #085078 1%, rgba(37, 111, 139, 255) 22%, rgba(42, 117, 143, 255) 26%, rgba(67, 144, 160, 255) 46%, rgba(61, 165, 114, ';
try {
    gp.setValue(value);
} catch (ex) {
    console.error('error');
}
```