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

ConfigClearCommand class ConfigClearCommand extends

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

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

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

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

bool choice(string $question, array $choices, string $default = null, mixed $attempts = null, bool $multiple = null)

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

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

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