code: def _to_tensor(self):
      exponent = self._input_list[1].zvalue.get_weight()[0]
      pow = zlayers.Power(exponent)
      return pow(self.model_inputs[0].zvalue)
  
file_path: analytics-zoo/pyzoo/zoo/pipeline/api/onnx/mapper/pow.py
imports: from zoo.pipeline.api.onnx.mapper.operator_mapper import OperatorMapper
  from zoo.pipeline.api.onnx.onnx_helper import OnnxHelper
  import zoo.pipeline.api.keras.layers
  import numpy
label_desc: Use image node_id 3 for calling the PowMapper obj's underlying member method code with example usage: obj._to_tensor() and returns: pow