wehub-resource-sync
38 lines
1.6 KiB
Python
38 lines
1.6 KiB
Python
# Copyright 2022 The TensorFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Util for converting a Python object to a Trackable."""
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from tensorflow.python.eager.polymorphic_function import saved_model_utils
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from tensorflow.python.framework import dtypes
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from tensorflow.python.framework import tensor_util
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from tensorflow.python.ops import resource_variable_ops
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from tensorflow.python.trackable import base
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from tensorflow.python.trackable import data_structures
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def convert_to_trackable(obj, parent=None):
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"""Converts `obj` to `Trackable`."""
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if isinstance(obj, base.Trackable):
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return obj
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obj = data_structures.wrap_or_unwrap(obj)
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if (tensor_util.is_tf_type(obj) and
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obj.dtype not in (dtypes.variant, dtypes.resource) and
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not resource_variable_ops.is_resource_variable(obj)):
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return saved_model_utils.TrackableConstant(obj, parent)
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if not isinstance(obj, base.Trackable):
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raise ValueError(f"Cannot convert {obj} to Trackable.")
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return obj
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