def __iadd__(self, node):

        self.stream.add(node)
        if self.node:
            self.stream.connect(self.node, node)
        self.node = node

        return self
Should return the bookmark url
dataset/ETHPy150Open Stiivi/brewery/brewery/streams.py/_StreamFork.__iadd__--crossover with--dataset/ETHPy150Open nitely/Spirit/spirit/topic/tests.py/TopicModelsTest.test_topic_get_bookmark_url