* @return List
   */
  public static List dropTrace(Cons keywords) {
    if (Stella.$TRACED_KEYWORDS$ != null) {
      { GeneralizedSymbol k = null;
        Cons iter000 = keywords;

        for (;!(iter000 == Stella.NIL); iter000 = iter000.rest) {
          k = ((GeneralizedSymbol)(iter000.value));
          Stella.$TRACED_KEYWORDS$.remove(Stella.string_keywordify(k.symbolName));
        }
      }
      if (Stella.$TRACED_KEYWORDS$.emptyP()) {
        Stella.$TRACED_KEYWORDS$ = null;
      }
    }
    return (Stella.$TRACED_KEYWORDS$);
  }