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tower 0.4.11

Tower is a library of modular and reusable components for building robust clients and servers.
Documentation 
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use std::{error::Error, fmt};

#[derive(Debug)]
pub enum Never {}

impl fmt::Display for Never {
    fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
        match *self {}
    }
}

impl Error for Never {}