Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/keras/src/saving/legacy/saved_model/metric_serialization.py: 59%

1# Copyright 2020 The TensorFlow Authors. All Rights Reserved. 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================== 

15"""Classes and functions implementing Metrics SavedModel serialization.""" 

16 

17import tensorflow.compat.v2 as tf 

18 

19from keras.src.saving import object_registration 

20from keras.src.saving.legacy.saved_model import constants 

21from keras.src.saving.legacy.saved_model import layer_serialization 

22 

23 

24class MetricSavedModelSaver(layer_serialization.LayerSavedModelSaver): 

25 """Metric serialization.""" 

26 

27 @property 

28 def object_identifier(self): 

29 return constants.METRIC_IDENTIFIER 

30 

31 def _python_properties_internal(self): 

32 metadata = dict( 

33 class_name=object_registration.get_registered_name(type(self.obj)), 

34 name=self.obj.name, 

35 dtype=self.obj.dtype, 

36 ) 

37 metadata.update(layer_serialization.get_serialized(self.obj)) 

38 if self.obj._build_input_shape is not None: 

39 metadata["build_input_shape"] = self.obj._build_input_shape 

40 return metadata 

41 

42 def _get_serialized_attributes_internal(self, unused_serialization_cache): 

43 return ( 

44 dict(variables=tf.__internal__.tracking.wrap(self.obj.variables)), 

45 # TODO(b/135550038): save functions to enable saving custom metrics. 

46 {}, 

47 ) 

48