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1# Copyright 2021 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"""Trace-time type system for tf.function (TraceType). 

16 

17Trace-time types describe things like tf.function signatures and type 

18constraints in some ops. 

19 

20This module provides utilities and concrete tf.types.experimental.TraceType 

21definitions for common Python types like containers, along with a generic 

22implementation for Python objects. 

23See also: tf.types.experimental.TraceType 

24 

25Other implementations of TraceType include tf.TypeSpec and its subclasses. 

26""" 

27 

28from tensorflow.core.function.trace_type.default_types import register_tensor_type 

29from tensorflow.core.function.trace_type.default_types import Weakref 

30from tensorflow.core.function.trace_type.serialization import deserialize 

31from tensorflow.core.function.trace_type.serialization import register_serializable 

32from tensorflow.core.function.trace_type.serialization import Serializable 

33from tensorflow.core.function.trace_type.serialization import serialize 

34from tensorflow.core.function.trace_type.serialization import SerializedTraceType 

35from tensorflow.core.function.trace_type.trace_type_builder import from_value 

36from tensorflow.core.function.trace_type.trace_type_builder import InternalCastContext 

37from tensorflow.core.function.trace_type.trace_type_builder import InternalPlaceholderContext 

38from tensorflow.core.function.trace_type.trace_type_builder import InternalTracingContext