Print EOL warning on import (#2824)

* Print EOL msg on import

requirements.txt

@@ -1,2 +1,2 @@
-typeguard>=2.7
+typeguard>=2.7,<3.0.0
 packaging

tensorflow_addons/__init__.py

@@ -14,7 +14,9 @@
 # ==============================================================================
 """Useful extra functionality for TensorFlow maintained by SIG-addons."""
 from tensorflow_addons.utils.ensure_tf_install import _check_tf_version
+from tensorflow_addons.utils.tfa_eol_msg import _print_eol_warning
 
+_print_eol_warning()
 _check_tf_version()
 
 # Local project imports

tensorflow_addons/utils/tfa_eol_msg.py

@@ -0,0 +1,33 @@
+# Copyright 2023 The TensorFlow 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.
+# ==============================================================================
+
+import warnings
+
+
+def _print_eol_warning():
+    """
+    Prints TensorFlow Addons End of Life Warning
+    """
+    warnings.warn(
+        "\n\nTensorFlow Addons (TFA) has ended development and introduction of new features.\n"
+        "TFA has entered a minimal maintenance and release mode until a planned end of life in May 2024.\n"
+        "Please modify downstream libraries to take dependencies from other repositories in our TensorFlow community "
+        "(e.g. Keras, Keras-CV, and Keras-NLP). \n\n"
+        "For more information see: https://github.com/tensorflow/addons/issues/2807 \n",
+        UserWarning,
+    )
+
+
+_print_eol_warning()