Return: Quiz IV in Rust

Quiz: What would this code produce if we were to copy-paste it in a code editor and run it?

fn hello(name: &str) -> String {
	return format!("Hello, {}", name);
}

fn main_function() {
	hello("Andy");
}

Important Note:

Do not use an actual code editor to get the answer! It would defy the whole purpose of the quiz!