pub type BoxedFmt<'lt> = Fmt<Box<dyn Fn(&mut Formatter<'_>) -> Result + 'lt>>;Aliased Type§
struct BoxedFmt<'lt>(pub Box<dyn Fn(&mut Formatter<'_>) -> Result<(), Error> + 'lt>);Fields§
§0: Box<dyn Fn(&mut Formatter<'_>) -> Result<(), Error> + 'lt>