push(

addArguments(InputArgument[] $arguments

float getProgressPercent() Gets the current progress bar percent.

string getDescription() Returns the description text.

writeln(string|array $messages, $type = self::OUTPUT_NORMAL) Writes a message to the output and adds

Question setHiddenFallback(bool $fallback)

setApplication(Application $application = null)

bool isMultiselect() Returns whether the choices are multiselect.

Command setAliases(string[] $aliases)

null|array|Traversable getAutocompleterValues()