The using directive for 'MemoryPack' appeared previously in this namespace

The using directive for 'System.Runtime.InteropServices' appeared previously in this namespace

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Non-nullable field 'other' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Argument 1 should be passed with the 'in' keyword

Argument 1 should be passed with the 'in' keyword

The using directive for 'MemoryPack' appeared previously in this namespace

The using directive for 'System.Runtime.InteropServices' appeared previously in this namespace

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).