sbool gazelle_isRecentlyUsedMapping(GazelleTree t, SS varMap, O... _) {
  S context = stringPar context(_);
  if (empty(context)) false;
  ret t != null && t.rule() != null
    && t.rule().avoidRecentlyUsedMappings
    && isTrue(dm_call(gazelle_rumCRUD(), 'hasRecentlyUsedMapping, context, t.rule().globalID, varMap));
}