| ConsoleOutputInterface | ConsoleOutputInterface is the interface implemented by ConsoleOutput class. |
| OutputInterface | OutputInterface is the interface implemented by all Output classes. |
| BufferedOutput | |
| ConsoleOutput | ConsoleOutput is the default class for all CLI output. It uses STDOUT and STDERR. |
| ConsoleSectionOutput | StreamOutput writes the output to a given stream. |
| NullOutput | NullOutput suppresses all output. |
| StreamOutput | StreamOutput writes the output to a given stream. |