string getVersion() Gets the application version.

bool isDebug() Returns whether verbosity is debug (-vvv).

string getName() Gets the name of the application.

string askHidden(string $question, callable|null $validator = null) Asks a question with the

Table setColumnWidth(int $columnIndex, int $width)

OutputFormatterInterface

null|callable getValidator() Gets the validator for the question.

OutputInterface getOutput()

string getQuestion() Returns the question.

string getName() Returns the canonical name of this helper.