code: def forward(self, inputs):
      embeds = self.embedding(inputs)
      return self.model(embeds)
  
file_path: BigDL/python/nano/test/pytorch/tests/test_optim.py
imports: import numpy
  from bigdl.nano.pytorch.optim import SparseAdam
  import torch
  from torch import nn
label_desc: Use image node_id 2 for calling the Example18 obj's underlying member method code with example usage: obj.forward(inputs) and returns: self