//! This crate provides types for identifying git objects using a hash digest.//!//! These are provided in borrowed versions as well as owned ones.//! ## Feature Flags#![cfg_attr(    feature = "document-features",    cfg_attr(doc, doc = ::document_features::document_features!()))]#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]#![deny(missing_docs, rust_2018_idioms, unsafe_code)] #[path = "oid.rs"]mod borrowed;pub use borrowed::oid; mod object_id;pub use object_id::{decode, ObjectId}; ///pub mod prefix; /// An partial owned hash possibly identifying an object uniquely,/// whose non-prefix bytes are zeroed.#[derive(PartialEq, Eq, Hash, Ord, PartialOrd, Clone, Copy, Debug)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub struct Prefix {    bytes: ObjectId,    hex_len: usize,} /// The size of a SHA1 hash digest in bytesconst SIZE_OF_SHA1_DIGEST: usize = 20; /// Denotes the kind of function to produce a `Id`#[derive(PartialEq, Eq, Debug, Hash, Ord, PartialOrd, Clone, Copy)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub enum Kind {    /// The Sha1 hash with 160 bits.    Sha1 = 1,} mod kind;