You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: yaml.rs
    path of file: ./repos/irc-bot.rs/src/util
    
    the code of the file until where you have to start completion: use ref_slice::ref_slice;
use smallvec;
use smallvec::SmallVec;
use std;
use std::borrow::Cow;
use std::iter;
use ut
    
    fn from_aug_ty(ty: &AugmentedTy) -> Kind {
        match ty {
            &AugmentedTy::Scalar => Kind::Scalar,
            &AugmentedTy::Sequence => Kind::Sequence,
            &AugmentedTy::Mapping(_) => Kind::Mapping,
            &AugmentedTy::Other => Kind::__Nonexhaustive,
        }
    }