fn downcast<T: EncodableInHeader>(self) -> StdResult<Box<T>, Self>impl EncodableInHeaderBoxExt for Box<dyn EncodableInHeader>[src]fn downcast<T: EncodableInHeader>(self) -> StdResult<Box<T>, Self>[src]impl EncodableInHeaderBoxExt for Box<dyn EncodableInHeader + Send>[src]fn downcast<T: EncodableInHeader>(self) -> StdResult<Box<T>, Self>[src]