code: def zeros(tensor):
      if tensor is not None:
          tensor.data.fill_(0)
  
file_path: dgl/examples/pytorch/arma/model.py
imports: import math
  import dgl.function
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling a global function with example usage: zeros(tensor) without return types