def empty(self):
        return not self.out_stk and not self.in_stk
invalid removed subcategory
dataset/ETHPy150Open algorhythms/LeetCode/232 Implement Queue using Stacks.py/Queue.empty--crossover with--dataset/ETHPy150Open nitely/Spirit/spirit/topic/tests.py/TopicFormTest.test_topic_publish_invalid_removed_subcategory