def update_user_activities(self, activities):
        for activity in activities:
            self.add_user_activity(activity.actor_id, activity)
Get the k closest points
dataset/ETHPy150Open tschellenbach/Stream-Framework/stream_framework/feed_managers/base.py/Manager.update_user_activities--crossover with--dataset/ETHPy150Open bt3gl/Advanced-Machine-Learning/k-NN/kNN.py/get_closest_k_points