# Named parameters

    sub full_name(:$first, :$last) { "$first $last" }
    say full_name(last => "Munoz", first => "Gabriel");

    # Optional parameters

    sub name($fname, $lname?) {
    	defined $lname ?? return "$fname $lname" !! return "$fname";
    }
    say name("Gabriel");

    # Perl 5 semantics are still here

    sub add {
    	my ($lhs, $rhs) = @_;
    	return $lhs + $rhs;
    }