Matches only the most recent count cells within each column. For example, if count=2, this
filter would match column foo:bar at timestamps 10 and 9 skip all earlier cells in
foo:bar, and then begin matching again in column foo:bar2. If duplicate cells are
present, as is possible when using an InterleaveFilter, each copy of the cell is
counted separately.
Matches only the first N cells of each row. If duplicate cells are present, as is possible
when using an Interleave, each copy of the cell is counted separately.
