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

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

void line(string $string, string $style = null, null|int|string $verbosity = null)

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

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

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

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

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

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

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