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use crate::prelude::*; use std::fmt::{Display, Formatter, Debug}; #[derive(Debug, PartialEq)] pub enum Error { Missing { branch: String, id: PrimitiveId, } } impl Display for Error { fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), std::fmt::Error> { // TODO: Don't use the debug implementation Debug::fmt(self, f) } } impl std::error::Error for Error { }