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

void line(string $string) Write a string as standard output.

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

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

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

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

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

FlushFailedCommand class FlushFailedCommand extends

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

bool hasArgument(string|int $name) Determine if the given argument is present