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

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

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

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

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

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

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

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

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

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