Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/tensorflow/python/keras/saving/saved_model/model_serialization.py: 48%

1# Copyright 2019 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 to Model SavedModel serialization.""" 

16 

17from tensorflow.python.keras.saving import saving_utils 

18from tensorflow.python.keras.saving.saved_model import constants 

19from tensorflow.python.keras.saving.saved_model import layer_serialization 

20from tensorflow.python.keras.saving.saved_model import save_impl 

21 

22 

23class ModelSavedModelSaver(layer_serialization.LayerSavedModelSaver): 

24 """Model SavedModel serialization.""" 

25 

26 @property 

27 def object_identifier(self): 

28 return constants.MODEL_IDENTIFIER 

29 

30 def _python_properties_internal(self): 

31 metadata = super(ModelSavedModelSaver, self)._python_properties_internal() 

32 # Network stateful property is dependent on the child layers. 

33 metadata.pop('stateful') 

34 metadata['is_graph_network'] = self.obj._is_graph_network # pylint: disable=protected-access 

35 metadata['save_spec'] = self.obj._get_save_spec(dynamic_batch=False) # pylint: disable=protected-access 

36 

37 metadata.update( 

38 saving_utils.model_metadata( 

39 self.obj, include_optimizer=True, require_config=False)) 

40 return metadata 

41 

42 def _get_serialized_attributes_internal(self, serialization_cache): 

43 default_signature = None 

44 

45 # Create a default signature function if this is the only object in the 

46 # cache (i.e. this is the root level object). 

47 if len(serialization_cache[constants.KERAS_CACHE_KEY]) == 1: 

48 default_signature = save_impl.default_save_signature(self.obj) 

49 

50 # Other than the default signature function, all other attributes match with 

51 # the ones serialized by Layer. 

52 objects, functions = ( 

53 super(ModelSavedModelSaver, self)._get_serialized_attributes_internal( 

54 serialization_cache)) 

55 functions['_default_save_signature'] = default_signature 

56 return objects, functions 

57 

58 

59class SequentialSavedModelSaver(ModelSavedModelSaver): 

60 

61 @property 

62 def object_identifier(self): 

63 return constants.SEQUENTIAL_IDENTIFIER