PhpCsFixer\FixerDefinition\ShortFixerDefinition::getConfigurationDescription PHP Method

    public function getConfigurationDescription()
    {
        return null;
    }

 /**
  * @param OutputInterface $output
  * @param string          $name
  */
 private function describeRule(OutputInterface $output, $name)
 {
     $fixers = $this->getFixers();
     if (!isset($fixers[$name])) {
         throw new DescribeNameNotFoundException($name, 'rule');
     }
     /** @var FixerInterface $fixer */
     $fixer = $fixers[$name];
     if ($fixer instanceof DefinedFixerInterface) {
         $definition = $fixer->getDefinition();
     } else {
         $definition = new ShortFixerDefinition('Description is not availble.');
     }
     $output->writeln(sprintf('<info>Description of</info> %s <info>rule</info>.', $name));
     $output->writeln($definition->getSummary());
     if ($definition->getDescription()) {
         $output->writeln($definition->getDescription());
     }
     $output->writeln('');
     if ($fixer->isRisky()) {
         $output->writeln('<error>Fixer applying this rule is risky.</error>');
         if ($definition->getRiskyDescription()) {
             $output->writeln($definition->getRiskyDescription());
         }
         $output->writeln('');
     }
     if ($fixer instanceof ConfigurableFixerInterface) {
         $output->writeln('<comment>Fixer is configurable.</comment>');
         if ($definition->getConfigurationDescription()) {
             $output->writeln($definition->getConfigurationDescription());
         }
         if ($definition->getDefaultConfiguration()) {
             $output->writeln(sprintf('Default configuration: <comment>%s</comment>.', $this->arrayToText($definition->getDefaultConfiguration())));
         }
         $output->writeln('');
     }
     if ($definition->getCodeSamples()) {
         $output->writeln('Fixing examples:');
         $differ = new SebastianBergmannDiffer();
         $diffFormatter = new DiffConsoleFormatter($output->isDecorated(), sprintf('<comment>   ---------- begin diff ----------</comment>%s%%s%s<comment>   ----------- end diff -----------</comment>', PHP_EOL, PHP_EOL));
         foreach ($definition->getCodeSamples() as $index => $codeSample) {
             $old = $codeSample->getCode();
             $tokens = Tokens::fromCode($old);
             if ($fixer instanceof ConfigurableFixerInterface) {
                 $fixer->configure($codeSample->getConfiguration());
             }
             $fixer->fix(new StdinFileInfo(), $tokens);
             $new = $tokens->generateCode();
             $diff = $differ->diff($old, $new);
             if (null === $codeSample->getConfiguration()) {
                 $output->writeln(sprintf(' * Example #%d.', $index + 1));
             } else {
                 $output->writeln(sprintf(' * Example #%d. Fixing with configuration: <comment>%s</comment>.', $index + 1, $this->arrayToText($codeSample->getConfiguration())));
             }
             $output->writeln($diffFormatter->format($diff, '   %s'));
             $output->writeln('');
         }
     }
     if ($definition instanceof ShortFixerDefinition) {
         $output->writeln(sprintf('<question>This rule is not yet described, do you want to help us and describe it?</question>'));
         $output->writeln('Contribute at <comment>https://github.com/FriendsOfPHP/PHP-CS-Fixer</comment> !');
         $output->writeln('');
     }
 }