code: def forward(ctx, x, y):
      return x * x + y
  
file_path: pytorch/caffe2/contrib/aten/docs/sample.py
imports: import tempfile
  import numpy
  from torch import nn
  from torch.autograd import Variable, Function
  import torch.onnx
  import onnx
  import caffe2.python.onnx.backend
label_desc: Use image node_id 1 for calling the MyFunction obj's underlying member method code with example usage: obj.forward(ctx, x, y) and returns: unknown