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

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

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

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

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

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

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

SubscribeCommand deprecated class SubscribeCommand extends

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

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