chore: import upstream snapshot with attribution

python/paddle/incubate/__init__.py

@@ -0,0 +1,73 @@
+# Copyright (c) 2020 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.layer_helper import LayerHelper  # noqa: F401
+from ..distributed import fleet  # noqa: F401
+from . import (  # noqa: F401
+    asp,
+    autograd,
+    autotune,
+    cc,
+    layers,
+    multiprocessing,
+    nn,
+    xpu,
+)
+from .checkpoint import auto_checkpoint  # noqa: F401
+from .framework import (  # noqa: F401
+    get_rng_state,
+    register_rng_state_as_index,
+    set_rng_state,
+)
+from .jit import inference
+from .nn.loss import identity_loss
+from .operators import (
+    graph_khop_sampler,
+    graph_reindex,
+    graph_sample_neighbors,
+    graph_send_recv,
+    softmax_mask_fuse,
+    softmax_mask_fuse_upper_triangle,
+)
+from .optimizer import (
+    DistributedFusedLamb,  # noqa: F401
+    LookAhead,
+    ModelAverage,
+)
+from .passes import fuse_resnet_unit_pass  # noqa: F401
+from .tensor import (
+    _npu_identity,  # noqa: F401
+    segment_max,
+    segment_mean,
+    segment_min,
+    segment_sum,
+)
+
+__all__ = [
+    'LookAhead',
+    'ModelAverage',
+    'softmax_mask_fuse_upper_triangle',
+    'softmax_mask_fuse',
+    'graph_send_recv',
+    'graph_khop_sampler',
+    'graph_sample_neighbors',
+    'graph_reindex',
+    'segment_sum',
+    'segment_mean',
+    'segment_max',
+    'segment_min',
+    'identity_loss',
+    'inference',
+    'cc',
+]