code: def add_noise(t, mag=1e-5):
      return t + mag * torch.rand(t.shape)
  
file_path: RecBole/recbole/model/general_recommender/admmslim.py
imports: from recbole.utils.enum_type import ModelType
  import numpy
  import scipy.sparse
  import torch
  from recbole.utils import InputType
  from recbole.model.abstract_recommender import GeneralRecommender
label_desc: Use image node_id 3 for calling a global function with example usage: add_noise(t, mag) and returns: unknown