use crate::;
/// # Examples
/// ActiveValue<T>
/// ```
/// use arel::prelude::*;
/// let v1: arel::sub_value::ValueTinyInt = 1.into();
/// let mut value = arel::ActiveValue::Unchanged(v1.clone());
/// assert!(value == v1);
///
/// value.set(2);
/// let v2: arel::sub_value::ValueTinyInt = 2.into();
/// assert!(value == v2);
///```