Struct Installing 

pub struct Installing<'a> {
    pub key: &'a str,
    pub sha256: &'a str,
    pub version: &'a str,
    pub exclusive_group: Option<&'a str>,
}

Which payload to install and what the ledger says about it, passed in because the cache index holds only the newest version, while a restore names an older payload that is still on disk.

Fields

key: &'a str

sha256: &'a str

version: &'a str

exclusive_group: Option<&'a str>