OutputInterface getOutput() Get the output implementation.

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

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

bool accepts(string|array $contentTypes) Determines whether the current

TaggedCache tags(array|mixed $names)

mixed offsetGet(mixed $key) Get the item at the given offset.

void subscribe(object|string $subscriber) Register an event subscriber

array load(string $environment, string $group, string $namespace = null) Load

array when() Get the events that trigger this service provider to register

void addNamespace(string $namespace, string $hint) Add a new namespace