chore: import upstream snapshot with attribution

python/paddle/quantization/__init__.py

@@ -0,0 +1,53 @@
+"""Quantization Module"""
+
+# Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .base_observer import BaseObserver
+from .base_quanter import BaseQuanter
+from .config import QuantConfig
+from .factory import quanter
+from .imperative.ptq import (  # noqa: F401
+    ImperativePTQ,
+)
+from .imperative.ptq_config import (  # noqa: F401
+    PTQConfig,
+    default_ptq_config,
+)
+from .imperative.ptq_quantizer import (  # noqa: F401
+    SUPPORT_ACT_QUANTIZERS,
+    SUPPORT_WT_QUANTIZERS,
+    AbsmaxQuantizer,
+    BaseQuantizer,
+    HistQuantizer,
+    KLQuantizer,
+    PerChannelAbsmaxQuantizer,
+)
+from .imperative.ptq_registry import (  # noqa: F401
+    PTQRegistry,
+)
+from .imperative.qat import (  # noqa: F401
+    ImperativeQuantAware,
+)
+from .ptq import PTQ
+from .qat import QAT
+
+__all__ = [
+    "QuantConfig",
+    "BaseQuanter",
+    "BaseObserver",
+    "quanter",
+    "QAT",
+    "PTQ",
+]