//! Error placeholder for [`Builder`][crate::Builder].
usestd::{
error,fmt::{self, Display},};/// Not an error, a zero-sized error placeholder for [Error][crate::Error], represents the end of the error source chain.
#[derive(Debug)]pubstructNae;implDisplay forNae{fnfmt(&self, _f:&mutfmt::Formatter<'_>)->fmt::Result{Ok(())}}implerror::Error forNae{}