Function cow_dedupe::group_by_hash

pub fn group_by_hash<'a, H, FH: FileHash<H> + 'static, G, I>(
    entries_iter_getter: G
) -> Result<Vec<([u8; <H::OutputSize>::USIZE], Vec<FileEntry>)>>where
    H: FixedDigest,
    [u8; <H::OutputSize>::USIZE]: From<GenericArray<u8, H::OutputSize>>,
    G: Fn() -> I,
    I: Iterator<Item = &'a [FileEntry]>,