chore: import upstream snapshot with attribution

python/paddle/sparse/nn/functional/__init__.py

@@ -0,0 +1,40 @@
+#   Copyright (c) 2022 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 .activation import leaky_relu, relu, relu6, softmax
+from .conv import (
+    conv2d,
+    conv3d,
+    subm_conv2d,
+    subm_conv2d_igemm,
+    subm_conv3d,
+    subm_conv3d_igemm,
+)
+from .pooling import max_pool3d
+from .transformer import attention
+
+__all__ = [
+    'conv2d',
+    'conv3d',
+    'subm_conv2d',
+    'subm_conv2d_igemm',
+    'subm_conv3d',
+    'subm_conv3d_igemm',
+    'max_pool3d',
+    'relu',
+    'relu6',
+    'leaky_relu',
+    'softmax',
+    'attention',
+]