See: <a href="/doc/reference/classes/ucalc.rule/removed/focusable/focusable-bool/">Focusable(bool)</a>, <a href="/doc/reference/classes/ucalc.rule/focusable-=-[bool]/">Focusable = [bool]</a>, <a href="/doc/reference/classes/ucalc.transformer/getmatches/">GetMatches</a>, <a href="/doc/reference/classes/ucalc.transformer/matches-=-[matches]/">Matches = [Matches]</a>, <a href="/doc/reference/enums/matchesoption/">MatchesOption</a>