bool hasOption(string $name) Determine if the given option is present.

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

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

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

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

bool confirm(string $question, bool $default = false) Confirm a question

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

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

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

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