rust code rendering

[lens0021]

https://docs.amber-lang.com/0.4.0-alpha/contribute/guide_book#2-2-translator

Actual

Expected

// This will translate `1 + 2` into `(( 1 + 2 ))`
fn translate() -> String {

    // self.digit_1 and self.digit_2 is set earlier by the parser
    format!("(( {} + {} ))", self.digit_1, self.digit_2)
}