See: <a href="/doc/reference/classes/ucalc.transformer/filter/filter-string/">Filter(string)</a>, <a href="/doc/reference/classes/ucalc.rule/startafter-=-[int]/">StartAfter = [int]</a>, <a href="/doc/reference/classes/ucalc.rule/removed/startafter/startafter-int/">StartAfter(int)</a>, <a href="/doc/reference/classes/ucalc.rule/stopafter-=-[int]/">StopAfter = [int]</a>, <a href="/doc/reference/classes/ucalc.rule/removed/stopafter/stopafter-int/">StopAfter(int)</a>