Function apply_receive_pack_push_request 

pub fn apply_receive_pack_push_request<R, I, C, U, D>(
    features: &ReceivePackFeatures,
    request: &ReceivePackPushRequest,
    read_ref: R,
    install_pack: I,
    contains_object: C,
    apply_updates: U,
    delete_ref: D,
) -> Result<ReceivePackReportStatus>
where
    R: FnMut(&str) -> Result<Option<ObjectId>>,
    I: FnMut(&[u8]) -> Result<()>,
    C: FnMut(&ObjectId) -> Result<bool>,
    U: FnMut(&[ReceivePackCommand]) -> Result<()>,
    D: FnMut(&ReceivePackCommand) -> Result<()>,