use std::fmt; #[derive(Debug)] pub struct CallbackQueryParseError; impl fmt::Display for CallbackQueryParseError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "{:?}", self) } } impl std::error::Error for CallbackQueryParseError {} #[derive(Debug)] pub struct CommandParseError; impl fmt::Display for CommandParseError { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:?}", self) } } impl std::error::Error for CommandParseError {}