unsafe fn try_from_sexp_numeric_option_unchecked<T>( sexp: SEXP, ) -> Result<Option<T>, SexpError>where i32: TryCoerce<T>, f64: TryCoerce<T>, u8: TryCoerce<T>, <i32 as TryCoerce<T>>::Error: Debug, <f64 as TryCoerce<T>>::Error: Debug, <u8 as TryCoerce<T>>::Error: Debug,