static string getTrustedHeaderName(string $key) Gets the trusted proxy header name

class ParameterBag implements IteratorAggregate,

Response setStatusCode(int $code, mixed

setCallback(callable $callback) Sets the PHP callback associated with this Response.

string getName() Gets this bag's name.

Response setEtag(string|null $etag = null

class MockArraySessionStorage implements

addCacheControlDirective(string $key, mixed $value = true) Adds a custom Cache-Control directive

mixed clear() Clears out data from bag.

AcceptHeader add(