docstr: :return: list of OnnxInput
docstr_tok: [":","return",":","list","of","OnnxInput"]
code: def _extract_model_inputs(self):
      """
      :return: list of OnnxInput
      """
      return [self._to_zoo_input(self._input_list[0])]
  
file_path: analytics-zoo/pyzoo/zoo/pipeline/api/onnx/mapper/conv.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 2 for calling the ConvMapper obj's underlying member method code with example usage: obj._extract_model_inputs() and returns: list