error on model with sequence types/layers

when running python -m onnxoptimizer input.onnx out on the attached .onnx file. I get

Traceback (most recent call last):
  File "/opt/homebrew/Cellar/python@3.8/3.8.16/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/opt/homebrew/Cellar/python@3.8/3.8.16/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/Users/bas/src/tetra/tetra-dev/lib/python3.8/site-packages/onnxoptimizer/__main__.py", line 15, in <module>
    main()
[input.onnx.zip](https://github.com/onnx/optimizer/files/11379347/input.onnx.zip)

  File "/Users/bas/src/tetra/tetra-dev/lib/python3.8/site-packages/onnxoptimizer/onnxoptimizer_main.py", line 84, in main
    onnx.checker.check_model(output_file)
  File "/Users/bas/src/tetra/tetra-dev/lib/python3.8/site-packages/onnx/checker.py", line 108, in check_model
    C.check_model_path(model, full_check)
onnx.onnx_cpp2py_export.checker.ValidationError: Field 'type' of 'value_info' is required but missing.

this is with onnxoptimizer==0.3.13 onnx==1.13.1

this happens on all models with a SequenceConstruct layer

input.onnx.zip

onnx / optimizer

error on model with sequence types/layers #134