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

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

void __construct() Create a new console command instance.

OutputInterface getOutput() Get the output implementation.

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

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

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

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

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

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