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<?php
declare(strict_types=1);
namespace loophp\collection\Operation;
use Closure;
use Generator;
use loophp\iterators\IterableIteratorAggregate;
/**
* @immutable
*
* @template TKey
* @template T
*/
final class IsEmpty extends AbstractOperation
{
* @return Closure(iterable<TKey, T>): Generator<int, bool>
public function __invoke(): Closure
return static fn (iterable $iterable): Generator => yield !(new IterableIteratorAggregate($iterable))->getIterator()->valid();
}
loophp /
collection
