code: def _to_tensor(self):
      raise Exception("Please define the content")
  
file_path: analytics-zoo/pyzoo/zoo/pipeline/api/onnx/mapper/operator_mapper.py
imports: import zoo.pipeline.api.keras.layers
  import zoo.pipeline.api.autograd
  from zoo.pipeline.api.onnx.onnx_helper import OnnxHelper
  import zoo.pipeline.api.onnx.mapper
  import importlib
  import numpy
label_desc: Use image node_id 5 for calling the OperatorMapper obj's underlying member method code with example usage: obj._to_tensor() without return types