Pokemon.java

public static final DiffCallback<Pokemon> DIFF_CALLBACK = new DiffCallback<Pokemon>() {
    @Override
    public boolean areItemsTheSame(@NonNull Pokemon oldPokemon, @NonNull Pokemon newPokemon) {
        return oldPokemon.id == newPokemon.id;
    }
        
    @Override
    public boolean areContentsTheSame(@NonNull Pokemon oldPokemon, @NonNull Pokemon newPokemon) {
        return oldPokemon.name.equals(newPokemon.name);
    }
};