interface.ilBuddySystemCollection.php

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<?php

declare(strict_types=1);

interface ilBuddySystemCollection extends Countable, IteratorAggregate, ArrayAccess
{
    public function add($element): void;

    public function remove($key): void;

    public function removeElement($element): void;

    public function containsKey($key): bool;

    public function getKey($element);

    public function clear(): void;

    public function contains($element): bool;

    public function get($key);

    public function set($key, $value): void;

    public function isEmpty(): bool;

    public function getKeys(): array;

    public function getValues(): array;

    public function filter(callable $callable): self;

    public function slice(int $offset, int $length = null): self;

    public function toArray(): array;

    public function equals($other): bool;
}