string anticipate(string $question, array $choices, string $default = null)

int callSilent(string $command, array $arguments = array()) Call another

string secret(string $question, bool $fallback = true) Prompt the user

string choice(string $question, array $choices, string $default = null, mixed $attempts = null, bool $multiple = null)

int run(InputInterface $input, OutputInterface $output) Run the console

$this describe(string $description) Set the description for the command

array options() Get all of the options passed to the command.

string|array argument(string $key = null) Get the value of a command argument

int callSilent(string $command, array $arguments = array()) Call another

void warn(string $string) Write a string as warning output.