chore: import upstream snapshot with attribution

python/paddle/nn/utils/dygraph_utils.py

@@ -0,0 +1,33 @@
+# 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 paddle import _legacy_C_ops
+from paddle.framework import dygraph_only
+
+
+@dygraph_only
+def _append_bias_in_dygraph(input, bias=None, axis=1):
+    """Append bias operation in dygraph mode.
+
+        Args:
+            input: the input variable.
+            bias:  the bias to be appended
+            axis:  the axis to perform operation
+
+    Return the Variable after bias operation
+    """
+    if bias is None:
+        return input
+
+    return _legacy_C_ops.elementwise_add(input, bias, 'axis', axis)