//! An abstraction over [fetching][fetch()] a pack from the server.//!//! This implementation hides the transport layer, statefulness and the protocol version to the [fetch delegate][fetch::Delegate],//! the actual client implementation.//! ## 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)] #[cfg(feature = "async-trait")]pub use async_trait;#[cfg(feature = "futures-io")]pub use futures_io;pub use maybe_async; pub use git_credentials as credentials;/// A convenience export allowing users of git-protocol to use the transport layer without their own cargo dependency.pub use git_transport as transport; ///#[cfg(any(feature = "blocking-client", feature = "async-client"))]pub mod fetch; #[cfg(any(feature = "blocking-client", feature = "async-client"))]mod fetch_fn;#[cfg(any(feature = "blocking-client", feature = "async-client"))]pub use fetch_fn::{fetch, FetchConnection}; mod remote_progress;pub use remote_progress::RemoteProgress; #[cfg(all(feature = "blocking-client", feature = "async-client"))]compile_error!("Cannot set both 'blocking-client' and 'async-client' features as they are mutually exclusive");