code: private function methodTableCleanValues($values)
      {
          foreach ($values as $k2 => $val) {
              if ($val === $this->debug->abstracter->UNDEFINED) {
                  unset($values[$k2]);
              } elseif (\is_array($val)) {
                  $values[$k2] = $this->debug->output->text->dump($val);
              }
          }
          if (\count($values) == 1 && $k2 == MethodTable::SCALAR) {
              $values = $val;
          }
          return $values;
      }
docs: Ready row value(s)
  
  @param array $values row values
  
  @return row values