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

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

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

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

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

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

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

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

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

void table(array $headers, array $rows, string $style = 'default') Format