code: def convert_Sigmoid(
      func, opset_version, input_names, output_names, context
  ):
      if opset_version == 1:
          return (
              onnx_helper.make_node(
                  "Sigmoid",
                  input_names,
                  output_names,
                  consumed_inputs=[1],
              ),
          )
      elif opset_version == 6:
          return (
              onnx_helper.make_node(
                  "Sigmoid", input_names, output_names
              ),
          )
  
file_path: chainer/onnx_chainer/functions/activation.py
imports: import numpy
  from onnx_chainer.functions.opset_version import support
  from onnx_chainer import onnx_helper
label_desc: Use image node_id 10 for calling a global function with example usage: convert_Sigmoid(func, opset_version, input_names, output_names, context) and returns: onnx_helper, onnx_helper