string getProcessedHelp() Returns the processed help for the command replacing the %command.name%

bool isAutoExitEnabled() Gets whether to automatically exit after a command execution or not

success(string|array $message) Formats a success result bar.

title(string $message) Formats a command title.

section(string $message) Formats a section title.

progressFinish() Finishes the progress output.

note(string|array $message) Formats a note admonition.

writeln(string|array $messages, int $options = self::OUTPUT_NORMAL) Writes a message to the output

comment(string|array $message) Formats a command comment.

Command addOption(string $name, string $shortcut