Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/onnx/version_converter.py: 80%

1# Copyright (c) ONNX Project Contributors 

2 

3# SPDX-License-Identifier: Apache-2.0 

4"""onnx version converter 

5 

6This enables users to convert their models between different opsets within the 

7default domain ("" or "ai.onnx"). 

8""" 

9 

10from __future__ import annotations 

11 

12import onnx 

13import onnx.onnx_cpp2py_export.version_converter as C # noqa: N812 

14from onnx import ModelProto 

15 

16 

17def convert_version(model: ModelProto, target_version: int) -> ModelProto: 

18 """Convert opset version of the ModelProto. 

19 

20 Arguments: 

21 model: Model. 

22 target_version: Target opset version. 

23 

24 Returns: 

25 Converted model. 

26 

27 Raises: 

28 RuntimeError when some necessary conversion is not supported. 

29 """ 

30 if not isinstance(model, ModelProto): 

31 raise TypeError( 

32 f"VersionConverter only accepts ModelProto as model, incorrect type: {type(model)}" 

33 ) 

34 if not isinstance(target_version, int): 

35 raise TypeError( 

36 f"VersionConverter only accepts int as target_version, incorrect type: {type(target_version)}" 

37 ) 

38 model_str = model.SerializeToString() 

39 converted_model_str = C.convert_version(model_str, target_version) 

40 return onnx.load_from_string(converted_model_str) 

41 

42 

43ConvertError = C.ConvertError