void info(string $string) Write a string as information output.

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

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

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

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

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

array options() Get all of the options passed to the command.

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

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

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