code: protected function createConfigurationDefinition()
      {
          return new FixerConfigurationResolver([
              (new AliasedFixerOptionBuilder(
                  new FixerOptionBuilder('multi_line_extends_each_single_line', 'Whether definitions should be multiline.'),
                  'multiLineExtendsEachSingleLine'
              ))
                  ->setAllowedTypes(['bool'])
                  ->setDefault(false)
                  ->getOption(),
              (new AliasedFixerOptionBuilder(
                  new FixerOptionBuilder('single_item_single_line', 'Whether definitions should be single line when including a single item.'),
                  'singleItemSingleLine'
              ))
                  ->setAllowedTypes(['bool'])
                  ->setDefault(false)
                  ->getOption(),
              (new AliasedFixerOptionBuilder(
                  new FixerOptionBuilder('single_line', 'Whether definitions should be single line.'),
                  'singleLine'
              ))
                  ->setAllowedTypes(['bool'])
                  ->setDefault(false)
                  ->getOption(),
          ]);
      }
docs: {@inheritdoc}