use std::io::Write; use crate::Kind; /// Writing of objects to a `Write` implementationpub trait WriteTo {    /// Write a representation of this instance to `out`.    fn write_to(&self, out: impl std::io::Write) -> std::io::Result<()>;     /// Returns the type of this object.    fn kind(&self) -> Kind;} impl<T> WriteTo for &Twhere    T: WriteTo,{    fn write_to(&self, out: impl Write) -> std::io::Result<()> {        <T as WriteTo>::write_to(self, out)    }     fn kind(&self) -> Kind {        <T as WriteTo>::kind(self)    }}