enum HW {
    Hello(String)
}

impl std::convert::From<&'static str> for HW {
    fn from(value: &'static str) -> Self {
        HW::Hello(String::from(value))
    }
}

fn greets<I: Into<HW>>(hello: I){
    match hello.into() {
        HW::Hello(value) => println!("Hello, {}!", value)
    }
}

fn main(){
    greets("world");
    //Is it possible to shortcut to something like this
    //greets("world");
}