Expanded class hierarchy of ProgressHelper in Zircon Profile 8
- class \Symfony\Component\Console\Helper\Helper implements HelperInterface
- class \Symfony\Component\Console\Helper\DebugFormatterHelper
- class \Symfony\Component\Console\Helper\DescriptorHelper
- class \Symfony\Component\Console\Helper\FormatterHelper
- class \Symfony\Component\Console\Helper\InputAwareHelper implements InputAwareInterface
- class \Symfony\Component\Console\Helper\ProcessHelper
- class \Symfony\Component\Console\Helper\ProgressHelper
- class \Symfony\Component\Console\Helper\QuestionHelper
- class \Symfony\Component\Console\Helper\TableHelper