use crate::transport::client::blocking_io::ReadlineBufRead;use crate::{    fetch::response::ShallowUpdate,    handshake::{Ref, refs, refs::parse::Error},}; /// Parse refs from the given input line by line. Protocol V2 is required for this to succeed.pub fn from_v2_refs(in_refs: &mut dyn ReadlineBufRead) -> Result<Vec<Ref>, Error> {    let mut out_refs = Vec::new();    while let Some(line) = in_refs.readline().transpose()?.transpose()?.and_then(|l| l.as_bstr()) {        out_refs.push(refs::shared::parse_v2(line)?);    }    Ok(out_refs)} /// Parse refs from the return stream of the handshake as well as the server capabilities, also received as part of the/// handshake./// Together they form a complete set of refs.////// # Note////// Symbolic refs are shoe-horned into server capabilities whereas refs (without symbolic ones) are sent automatically as/// part of the handshake. Both symbolic and peeled refs need to be combined to fit into the [`Ref`] type provided here.pub fn from_v1_refs_received_as_part_of_handshake_and_capabilities<'a>(    in_refs: &mut dyn ReadlineBufRead,    capabilities: impl Iterator<Item = gix_transport::client::capabilities::Capability<'a>>,) -> Result<(Vec<Ref>, Vec<ShallowUpdate>), Error> {    let mut out_refs = refs::shared::from_capabilities(capabilities)?;    let mut out_shallow = Vec::new();    let number_of_possible_symbolic_refs_for_lookup = out_refs.len();     while let Some(line) = in_refs.readline().transpose()?.transpose()?.and_then(|l| l.as_bstr()) {        refs::shared::parse_v1(            number_of_possible_symbolic_refs_for_lookup,            &mut out_refs,            &mut out_shallow,            line,        )?;    }    Ok((out_refs.into_iter().map(Into::into).collect(), out_shallow))}