Filtering in Django Dynamic REST

How can I filter in django dynamic REST (https://github.com/AltSchool/dynamic-rest) with OR clause?

I need to implement queryset like

User.objects.filter(Q(username="admin") | Q(first_name="test"))

Is it possible to do it via request GET query parameters - something like api/users?filter{username}=admin <OR> filter{first_name}=test?