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use std::fmt; pub enum Status { On, Off, } impl fmt::Display for Status { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { Status::On => write!(f, "on"), Status::Off => write!(f, "off"), } } } impl Status { pub fn as_bool(&self) -> bool { match self { Status::On => true, Status::Off => false, } } pub fn is_on(&self) -> bool { self.as_bool() } pub fn is_off(&self) -> bool { !self.as_bool() } }