use bstr::{BStr, BString}; mod error {    use crate::fetch::refs::parse;     /// The error returned by [refs()][crate::fetch::refs()].    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        Io(#[from] std::io::Error),        #[error(transparent)]        Transport(#[from] git_transport::client::Error),        #[error(transparent)]        Parse(#[from] parse::Error),    }}pub use error::Error; ///pub mod parse {    use bstr::BString;     /// The error returned when parsing References/refs from the server response.    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        Io(#[from] std::io::Error),        #[error(transparent)]        Id(#[from] git_hash::decode::Error),        #[error("{symref:?} could not be parsed. A symref is expected to look like <NAME>:<target>.")]        MalformedSymref { symref: BString },        #[error("{0:?} could not be parsed. A V1 ref line should be '<hex-hash> <path>'.")]        MalformedV1RefLine(String),        #[error(            "{0:?} could not be parsed. A V2 ref line should be '<hex-hash> <path>[ (peeled|symref-target):<value>'."        )]        MalformedV2RefLine(String),        #[error("The ref attribute {attribute:?} is unknown. Found in line {line:?}")]        UnkownAttribute { attribute: String, line: String },        #[error("{message}")]        InvariantViolation { message: &'static str },    }} /// A git reference, commonly referred to as 'ref', as returned by a git server before sending a pack.#[derive(PartialEq, Eq, Debug, Hash, Ord, PartialOrd, Clone)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub enum Ref {    /// A ref pointing to a `tag` object, which in turns points to an `object`, usually a commit    Peeled {        /// The name at which the ref is located, like `refs/tags/1.0`.        full_ref_name: BString,        /// The hash of the tag the ref points to.        tag: git_hash::ObjectId,        /// The hash of the object the `tag` points to.        object: git_hash::ObjectId,    },    /// A ref pointing to a commit object    Direct {        /// The name at which the ref is located, like `refs/heads/main`.        full_ref_name: BString,        /// The hash of the object the ref points to.        object: git_hash::ObjectId,    },    /// A symbolic ref pointing to `target` ref, which in turn points to an `object`    Symbolic {        /// The name at which the symbolic ref is located, like `HEAD`.        full_ref_name: BString,        /// The path of the ref the symbolic ref points to, like `refs/heads/main`.        ///        /// See issue [#205] for details        ///        /// [#205]: https://github.com/Byron/gitoxide/issues/205        target: BString,        /// The hash of the object the `target` ref points to.        object: git_hash::ObjectId,    },    /// A ref is unborn on the remote and just points to the initial, unborn branch, as is the case in a newly initialized repository    /// or dangling symbolic refs.    Unborn {        /// The name at which the ref is located, typically `HEAD`.        full_ref_name: BString,        /// The path of the ref the symbolic ref points to, like `refs/heads/main`, even though the `target` does not yet exist.        target: BString,    },} impl Ref {    /// Provide shared fields referring to the ref itself, namely `(name, target, [peeled])`.    /// In case of peeled refs, the tag object itself is returned as it is what the ref directly refers to, and target of the tag is returned    /// as `peeled`.    /// If `unborn`, the first object id will be the null oid.    pub fn unpack(&self) -> (&BStr, Option<&git_hash::oid>, Option<&git_hash::oid>) {        match self {            Ref::Direct { full_ref_name, object }            | Ref::Symbolic {                full_ref_name, object, ..            } => (full_ref_name.as_ref(), Some(object), None),            Ref::Peeled {                full_ref_name,                tag: object,                object: peeled,            } => (full_ref_name.as_ref(), Some(object), Some(peeled)),            Ref::Unborn {                full_ref_name,                target: _,            } => (full_ref_name.as_ref(), None, None),        }    }} pub(crate) mod function; #[cfg(any(feature = "blocking-client", feature = "async-client"))]pub(crate) mod shared; #[cfg(feature = "async-client")]mod async_io;#[cfg(feature = "async-client")]pub use async_io::{from_v1_refs_received_as_part_of_handshake_and_capabilities, from_v2_refs}; #[cfg(feature = "blocking-client")]mod blocking_io;#[cfg(feature = "blocking-client")]pub use blocking_io::{from_v1_refs_received_as_part_of_handshake_and_capabilities, from_v2_refs};