1use thiserror::Error; 2 3#[derive(Error, Debug)] 4pub enum RegionError { 5 #[error("{source}")] 6 Utf8 { 7 #[from] 8 source: std::str::Utf8Error, 9 }, 10 #[error("{source}")] 11 Env { 12 #[from] 13 source: std::env::VarError, 14 }, 15}