Function text_of 

fn text_of(
    raw: &Raw,
    threads: &BTreeMap<String, Vec<String>>,
    region: Option<&Region>,
    cap: u64,
) -> Text

A row Java read, as it travels: its people keyed (its conversation’s, else its own addresses), its words, its parts said (their content left for bring_media), every column kept as it came.