Non-abstract class loophp\collection\Collection contains abstract method memorize() from interface loophp\collection\Contract\Operation\Memorizeable.

src/Collection.php:35:13: UnimplementedInterfaceMethod: Method memorize is not defined on class loophp\collection\Collection (see https://psalm.dev/044)

Process completed with exit code 1.

Non-abstract class loophp\collection\Collection contains abstract method memorize() from interface loophp\collection\Contract\Operation\Memorizeable.

Method loophp\collection\Collection::coalesce() should return loophp\collection\Contract\Collection<TKey, T> but returns loophp\collection\Collection<mixed, mixed>.

Method loophp\collection\Collection::collapse() should return loophp\collection\Contract\Collection<TKey, T> but returns loophp\collection\Collection<mixed, mixed>.

Method loophp\collection\Collection::cycle() should return loophp\collection\Contract\Collection<TKey, T> but returns loophp\collection\Collection<mixed, mixed>.

Method loophp\collection\Collection::flip() should return loophp\collection\Contract\Collection<T, TKey> but returns loophp\collection\Collection<mixed, mixed>.

Parameter #1 $ of closure expects callable(mixed, mixed, mixed, iterable): mixed, callable(T|V, T, TKey, iterable<TKey, T>): V given.

Parameter #1 $ of closure expects callable(mixed, mixed, mixed, iterable): mixed, callable(T|V, T, TKey, iterable<TKey, T>): V given.

Method loophp\collection\Collection::frequency() should return loophp\collection\Contract\Collection<int, T> but returns loophp\collection\Collection<int, mixed>.

Method loophp\collection\Collection::init() should return loophp\collection\Contract\Collection<TKey, T> but returns loophp\collection\Collection<mixed, mixed>.