Function contrafact::in_range_

pub fn in_range_<R, T>(range: R) -> InRangeFact<R, T>where
    R: RangeBounds<T> + Debug,
    T: PartialEq + PartialOrd + Ord + Clone + Debug + Euclid + Add<Output = T> + Sub<Output = T> + Bounded + One,

Specifies a range constraint