Function write_authors_csv 

pub fn write_authors_csv<W: Write>(
    rows: &[AuthorsRow],
    w: &mut W,
    code_maat_compat: bool,
) -> Result<()>

Modern columns for the authors analysis (per-entity author breakdown — Bird et al. 2011 risk indicator). Code-maat’s parity columns entity,n-authors,n-revs are emitted under --code-maat-compat.