Function detail_report 

fn detail_report(
    s: &Session,
    detail: &Detail,
    learned_before: Option<i64>,
    said: bool,
    scores: bool,
    lines: &mut Vec<String>,
) -> Map<String, Value>

A test’s detail: by account and folder, the grid, the errors asked, your own mail’s then each outside source’s. Lines only when said; the data always. learned_before: when the table tested was trained (eval).