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

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

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

void error(string $string, null|int|string $verbosity = null) Write a string

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

string output() Get the output for the last run command.

void fire() Execute the console command.

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

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

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