timeago 0.6.0

Given a Duration, lossily format it like in 'N days ago'. Parsing it back to Duration is not supported yet.
Documentation 
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use super::super::{Language, TimeUnit};

#[derive(Default)]
pub struct German;
impl Language for German {
    fn clone_boxed(&self) -> super::super::BoxedLanguage {
        Box::new(Self {})
    }
    fn too_low(&self) -> &'static str {
        "jetzt"
    }
    fn too_high(&self) -> &'static str {
        "zu alt"
    }
    fn ago(&self) -> &'static str {
        "vor"
    }
    fn get_word(&self, tu: TimeUnit, x: u64) -> &'static str {
        use TimeUnit::*;
        if x == 1 {
            match tu {
                Nanoseconds => "Nanosekunde",
                Microseconds => "Mikrosekunde",
                Milliseconds => "Millisekunde",
                Seconds => "Sekunde",
                Minutes => "Minute",
                Hours => "Stunde",
                Days => "Tag",
                Weeks => "Woche",
                Months => "Monat",
                Years => "Jahr",
            }
        } else {
            match tu {
                Nanoseconds => "Nanosekunden",
                Microseconds => "Mikrosekunden",
                Milliseconds => "Millisekunden",
                Seconds => "Sekunden",
                Minutes => "Minuten",
                Hours => "Stunden",
                Days => "Tagen",
                Weeks => "Wochen",
                Months => "Monaten",
                Years => "Jahren",
            }
        }
    }
    fn place_ago_before(&self) -> bool {
        true
    }
}

#[test]
fn test() {
    use super::super::Formatter;
    use std::time::Duration;
    let f = Formatter::with_language(German);
    assert_eq!(f.convert(Duration::from_secs(60)), "vor 1 Minute");
}