mixed getOption(string $name) Returns the option value for a given option name.

write(string|array $messages, bool $newline = false, $type = self::OUTPUT_NORMAL) Writes a message

string ask(string $question, string|null $default = null, callable|null $validator = null) Asks

int getVerbosity() Gets the current verbosity of the output.

validate() Validates the input. Exceptions

bool isDecorated() Gets the decorated flag.

array getOptionDefaults() Gets an array of default values.

mixed getParameterOption(string|array $values, mixed $default = false, bool $onlyParams = false)

error(string|array $message) Formats an error result bar.

setForeground(string $color = null) Sets style foreground color.