code: public function run(InputInterface $input = null, OutputInterface $output = null)
      {
          if ($input === null) {
              # Allow namespace contents to be listed when they are entered with a trailing colon
              if (isset($_SERVER["argv"][1]) && substr($_SERVER["argv"][1], -1) === ":") {
                  # Re-create the argv contents to simulate the user running the list command
                  $argv = [$_SERVER["argv"][0]];
                  $argv[] = "list";
                  $argv[] = substr($_SERVER["argv"][1], 0, -1);
                  $argv += array_slice($_SERVER["argv"], 2, count($_SERVER["argv"]) - 2);
                  $_SERVER["argv"] = $argv;
              }
              $input = new ArgvInput();
          }
  
          if ($output === null) {
              $output = new Output();
          }
  
          parent::run($input, $output);
      }
docs: {@inheritDoc}