def create_nodes(self, count, *args, **kwargs):
        return [self.create_node(*args, **kwargs) for _ in range(count)]
Gets the DataFrame and returns only columns
dataset/ETHPy150Open openstack/fuel-web/nailgun/nailgun/test/base.py/EnvironmentManager.create_nodes--crossover with--dataset/ETHPy150Open anaderi/lhcb_trigger_ml/hep_ml/uboost.py/uBoostBDT.get_train_vars