JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr */ interface Collection extends \IteratorAggregate, \Countable, \JsonSerializable { /** * Removes all values from the collection. */ public function clear(); /** * Returns the size of the collection. * * @return int */ public function count(): int; /** * Returns a shallow copy of the collection. * * @return static a copy of the collection. * * @psalm-return static */ public function copy(); /** * Returns whether the collection is empty. * * This should be equivalent to a count of zero, but is not required. * Implementations should define what empty means in their own context. */ public function isEmpty(): bool; /** * Returns an array representation of the collection. * * The format of the returned array is implementation-dependent. * Some implementations may throw an exception if an array representation * could not be created. * * @return array */ public function toArray(): array; }