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

callable getNormalizer() Gets the normalizer for the response. The normalizer can ba a

class TextDescriptor extends

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

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

string progress(string $id, string $buffer, bool $error = false, string $prefix = 'OUT', string $errorPrefix = 'ERR')

class ConsoleEvent extends Event

interface DescriptorInterface Descriptor interface. Methods

bool isArray() Returns true if the argument can take multiple values.

string getName() Returns the option name.