Function aggregate_tree_from_replay 

pub fn aggregate_tree_from_replay<R: Read + Seek>(
    out: (impl Write, bool),
    replay: &mut Replay<R>,
    byte_format: ByteFormat,
    max_depth: usize,
    compute_total: bool,
    sort_by_size_in_bytes: bool,
) -> Result<WalkResult>

Replay a verified snapshot as an indented aggregate tree, retaining only displayed levels.