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use core::fmt::{Display, Formatter, Result};

#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub enum Variability {
    Const,
    Var,
}

impl Display for Variability {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        write!(
            f,
            "{}",
            match self {
                Variability::Const => "const",
                Variability::Var => "var",
            }
        )
    }
}