*/ interface RelationshipInterface extends Countable, IteratorAggregate, JsonSerializable, Serializable { /** * @return string * @phpstan-pure */ public function getName(): string; /** * @return string * @phpstan-pure */ public function getType(): string; /** * @return bool * @phpstan-pure */ public function isModified(): bool; /** * @return string * @phpstan-pure */ public function getCardinality(): string; /** * @return P * @phpstan-pure */ public function getParent(): IdentifierInterface; /** * @param string $id * @param string|null $type * @return bool * @phpstan-pure */ public function has(string $id, ?string $type = null): bool; /** * @param T $identifier * @return bool * @phpstan-pure */ public function hasIdentifier(IdentifierInterface $identifier): bool; /** * @param T $identifier * @return bool */ public function addIdentifier(IdentifierInterface $identifier): bool; /** * @param T|null $identifier * @return bool */ public function removeIdentifier(?IdentifierInterface $identifier = null): bool; /** * @return iterable */ public function getIterator(): iterable; }