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use std::error::Error as StdError; use std::fmt::{self, Display}; #[derive(Debug)] pub struct Error(String); impl Error { pub fn new(detail: &str) -> Self { Self(detail.to_owned()) } } impl StdError for Error {} impl Display for Error { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fmt::Display::fmt(&self.0, fmt) } }