//!  the `round` function, which  supports three modes:
//! * [Half Up](https://en.wikipedia.org/wiki/Rounding#Round_half_up)
//! * [Half Down](https://en.wikipedia.org/wiki/Rounding#Round_half_down)
//! * [Half Even](https://en.wikipedia.org/wiki/Rounding#Round_half_even) (default)
//!
//! ```edition2018
//! use rusty_money::{money, Money, Currency, Round};