from linkedlist import DoubleLinkedList ld = DoubleLinkedList() print("esta vacia?: ", ld.is_empty()) ld.append(10) ld.append(20) ld.append(30) print(f"la lista tiene: {ld.get_size()}") ld.transversal() ld.reverse_transversal() ld.remove_from_head(20)