///pub mod namespace {    ///    pub mod set {        use crate::easy;         /// The error returned by [ReferenceAccessExt::set_namespace(…)][easy::ext::ReferenceAccessExt::set_namespace()].        #[derive(Debug, thiserror::Error)]        #[allow(missing_docs)]        pub enum Error {            #[error(transparent)]            BorrowRepoMut(#[from] easy::borrow::repo::Error),            #[error(transparent)]            NameValidation(#[from] git_validate::refname::Error),        }    }} ///pub mod edit {    use crate::easy;     /// The error returned by [ReferenceAccessExt::edit_references(…)][easy::ext::ReferenceAccessExt::edit_references()], and others    /// which ultimately create a reference.    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        FileTransactionPrepare(#[from] git_ref::file::transaction::prepare::Error),        #[error(transparent)]        FileTransactionCommit(#[from] git_ref::file::transaction::commit::Error),        #[error(transparent)]        NameValidation(#[from] git_validate::reference::name::Error),        #[error("BUG: The repository could not be borrowed")]        BorrowRepo(#[from] easy::borrow::repo::Error),    }} ///pub mod peel {    use crate::easy;     /// The error returned by [Reference::peel_to_id_in_place(…)][easy::Reference::peel_to_id_in_place()] and    /// [Reference::into_fully_peeled_id(…)][easy::Reference::into_fully_peeled_id()].    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        ToId(#[from] git_ref::peel::to_id::Error),        #[error(transparent)]        PackedRefsOpen(#[from] git_ref::packed::buffer::open::Error),        #[error("BUG: Part of interior state could not be borrowed.")]        BorrowState(#[from] easy::borrow::state::Error),        #[error("BUG: The repository could not be borrowed")]        BorrowRepo(#[from] easy::borrow::repo::Error),    }     impl From<easy::reference::packed::Error> for Error {        fn from(err: easy::reference::packed::Error) -> Self {            match err {                easy::reference::packed::Error::PackedRefsOpen(err) => Error::PackedRefsOpen(err),                easy::reference::packed::Error::BorrowState(err) => Error::BorrowState(err),            }        }    }} ///pub mod find {    use crate::easy;     ///    pub mod existing {        use crate::easy;         /// The error returned by [ReferenceAccessExt::find_reference(…)][easy::ext::ReferenceAccessExt::find_reference()], and others.        #[derive(Debug, thiserror::Error)]        #[allow(missing_docs)]        pub enum Error {            #[error(transparent)]            Find(#[from] easy::reference::find::Error),            #[error("The reference did not exist even though that was expected")]            NotFound,        }    }     /// The error returned by [ReferenceAccessExt::try_find_reference(…)][easy::ext::ReferenceAccessExt::try_find_reference()].    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        Find(#[from] git_ref::file::find::Error),        #[error(transparent)]        PackedRefsOpen(#[from] git_ref::packed::buffer::open::Error),        #[error("BUG: Part of interior state could not be borrowed.")]        BorrowState(#[from] easy::borrow::state::Error),        #[error("BUG: The repository could not be borrowed")]        BorrowRepo(#[from] easy::borrow::repo::Error),    }     impl From<easy::reference::packed::Error> for Error {        fn from(err: easy::reference::packed::Error) -> Self {            match err {                easy::reference::packed::Error::PackedRefsOpen(err) => Error::PackedRefsOpen(err),                easy::reference::packed::Error::BorrowState(err) => Error::BorrowState(err),            }        }    }}