fn plural(self) -> &'static str {
        match self {
            TimeUnit::Seconds => "seconds",
            TimeUnit::Minutes => "minutes",
            TimeUnit::Hours   => "hours",
            TimeUnit::Days    => "days",
            TimeUnit::Months  => "months",
            TimeUnit::years   => "years"
        }
    }
// return the plural noun for this time unit
return the plural noun for this time unit
return the plural noun for this time unit
fn plural(self) -> &'static str {
        match self {
            TimeUnit::Seconds => "seconds",
            TimeUnit::Minutes => "minutes",
            TimeUnit::Hours   => "hours",
            TimeUnit::Days    => "days",
            TimeUnit::Months  => "months",
            TimeUnit::years   => "years"
        }
    }
fn plural ( self ) -> & ' static str { match self { TimeUnit :: Seconds => " " , TimeUnit :: Minutes => " " , TimeUnit :: Hours => " " , TimeUnit :: Days => " " , TimeUnit :: Months => " " , TimeUnit :: years => " " } }
return the plural noun for this time unit
return the plural noun for this time unit
self
self