def input_smooth_adjustment_time_flow_1_of_3(self):
        return (self.input() - self.input_smooth_adjustment_time_stock_1_of_3()) / (1.*self.adjustment_time()/3)
add an attribut to a node
dataset/ETHPy150Open JamesPHoughton/pysd/tests/old_tests/vensim/test_smooth.py/Components.input_smooth_adjustment_time_flow_1_of_3--crossover with--dataset/ETHPy150Open kakwa/pygraph_redis/pygraph_redis/directed_graph.py/Directed_graph._add_attribut