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use thiserror::Error; #[derive(Error, Debug)] pub enum Error { #[error("`{0}`")] Generic(String), #[error("parse error:{0}")] ParseError(#[from] serde_json::Error), #[error("io error:{0}")] Io(#[from] std::io::Error), } pub type Result<T> = std::result::Result<T, Error>;