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use Add;
/// A trait describing basic functionality for simple text-based progress-bars.
///
///
/// # Mini-Examples
///
/// ```
/// use progressing::{
/// bernoulli::Bar as BernoulliBar, clamping::Bar as ClampingBar, mapping::Bar as MappingBar,
/// Baring,
/// };
///
/// /// Printing value 0.3 clamped to [0, 1]
/// /// [=====>------------]
/// fn clamped() {
/// println!("Printing value 0.3 clamped to [0, 1]");
/// let mut progress_bar = ClampingBar::new();
/// progress_bar.set_len(20);
/// progress_bar.set(0.3);
/// println!("{}", progress_bar);
/// }
///
/// /// Mapping from [-9, 5] to [0, 1]
/// /// [================>-] (4 / 5)
/// fn mapped() {
/// println!("Mapping from [-9, 5] to [0, 1]");
/// let mut progress_bar = MappingBar::with_range(-9, 5);
/// progress_bar.set_len(20);
/// progress_bar.set(4);
/// println!("{}", progress_bar);
/// }
///
/// /// Bernoulli-Bar counting successes (42 / 60) and attempts (# 130)
/// /// [============>-----] (42 / 60 # 130)
/// fn bernoulli() {
/// println!("Bernoulli-Bar counting successes (42 / 60) and attempts (# 130)");
/// let mut progress_bar = BernoulliBar::with_goal(60);
/// progress_bar.set_len(20);
/// progress_bar.set((42, 130));
/// println!("{}", progress_bar);
/// }
///
/// fn main() {
/// clamped();
/// println!();
/// mapped();
/// println!();
/// bernoulli();
/// }
/// ```