Expanded class hierarchy of S3 in Flysystem - S3 2.0.x
- class \Drupal\flysystem_s3\Flysystem\S3 implements \Drupal\flysystem\Plugin\FlysystemPluginInterface, ContainerFactoryPluginInterface uses \Drupal\flysystem\Plugin\ImageStyleGenerationTrait, \Drupal\flysystem\Plugin\FlysystemUrlTrait