/// Formats the value using the given formatter.
///
/// # Examples
///
/// ```
/// use std::fmt;
///
/// struct Position {
///     longitude: f32,
///     latitude: f32,
/// }
///
/// impl fmt::Display for Position {
///     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
///         write!(f, "({}, {})", self.longitude, self.latitude)
///     }
/// }
///
/// assert_eq!("(1.987, 2.983)",
///             format!("{}", Position {
///                 longitude: 1.987, latitude: 2.983,
///             }));
/// ```