Class Kiboko\Component\Dockerfile\Dockerfile implements generic interface IteratorAggregate but does not specify its types: TKey, TValue

Property Kiboko\Component\Dockerfile\Dockerfile::$layers (iterable<Kiboko\Component\Dockerfile\Dockerfile\LayerInterface>) does not accept array<int|string, Kiboko\Component\Dockerfile\Dockerfile\LayerInterface|null>.

Parameter #1 $array of function array_push expects array, iterable<Kiboko\Component\Dockerfile\Dockerfile\LayerInterface> given.

Parameter #2 $array of function array_map expects array, iterable<Kiboko\Component\Dockerfile\Dockerfile\LayerInterface> given.

Method Kiboko\Component\Dockerfile\Dockerfile::getIterator() return type with generic class ArrayIterator does not specify its types: TKey, TValue

Parameter #1 $array of class ArrayIterator constructor expects array<TKey of (int|string), TValue>, iterable<Kiboko\Component\Dockerfile\Dockerfile\LayerInterface> given.

Parameter #1 $value of function count expects array|Countable, iterable<Kiboko\Component\Dockerfile\Dockerfile\LayerInterface> given.

Parameter #1 $stream of function fwrite expects resource, resource|false given.

Parameter #1 $stream of function fseek expects resource, resource|false given.

Method Kiboko\Component\Dockerfile\Dockerfile::asResource() should return resource but returns resource|false.