sbool gazelle_isRecentlyUsedMapping(GazelleTree t, SS varMap, O... _) {
  ret t != null && t.rule() != null && t.rule().avoidRecentlyUsedMappings
    && isTrue(dm_call(gazelle_rumCRUD(), 'hasRecentlyUsedMapping, or2(stringPar context(_), "unknown"), t.rule().globalID, varMap));
  }
}