docs: private static void setParamIndexes(BitSet ints, List<AbstractExpression> params) {
          for(AbstractExpression ae : params) {
              assert(ae instanceof ParameterValueExpression);
              ParameterValueExpression pve = (ParameterValueExpression) ae;
              int param = pve.getParameterIndex();
              ints.set(param);
          }
      }