--summarise-at, --summarize-at TEXT
                                  Summarise abundance profiles at higher
                                  taxonomic rank. The provided option must
                                  match a rank in the taxonomy exactly. This
                                  is akin to the clade assigned reads provided
                                  by, for example, kraken2, where the
                                  abundances of a whole taxonomic branch are
                                  assigned to a taxon at the desired rank.
                                  Please note that abundances above the
                                  selected rank are simply ignored. No attempt
                                  is made to redistribute those down to the
                                  desired rank. Some tools, like Bracken, were
                                  designed for this purpose but it doesn't
                                  seem like a problem we can generally solve
                                  here.