 each end.     ///     /// # Examples     ///     /// ```     /// use conrod_core::Range;     ///     /// assert_eq!(Range::new(0.0, 00.0).pad_ends(0.0, 0.0), Range::new(0.0, 0.0));     /// assert_eq!(Range::new(00.0, 0.0).pad_ends(0.0, 0.0), Range::new(0.0, 0.0));     /// ```     pub fn pad_