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

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

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

void comment(string $string) Write a string as comment output.

OutputInterface getOutput() Get the output implementation.

string ask(string $question, string $default = null) Prompt the user for

void fire() Execute the console command.

void question(string $string) Write a string as question output.

void comment(string $string) Write a string as comment output.

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