Adds __init__.py files for "experimental".

PiperOrigin-RevId: 347908308

tensorflow_federated/experimental/BUILD

+load("@rules_python//python:defs.bzl", "py_library")
+
 package(default_visibility = ["//visibility:private"])
 
 licenses(["notice"])
+
+py_library(
+    name = "experimental",
+    srcs = ["__init__.py"],
+    srcs_version = "PY3",
+)

tensorflow_federated/experimental/__init__.py

+# Copyright 2020, The TensorFlow Federated Authors.
+#
+# 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.

tensorflow_federated/experimental/python/BUILD

+load("@rules_python//python:defs.bzl", "py_library")
+
 package(default_visibility = ["//visibility:private"])
 
 licenses(["notice"])
+
+py_library(
+    name = "python",
+    srcs = ["__init__.py"],
+    srcs_version = "PY3",
+)

tensorflow_federated/experimental/python/__init__.py

+# Copyright 2020, The TensorFlow Federated Authors.
+#
+# 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.

tensorflow_federated/experimental/python/core/BUILD

+load("@rules_python//python:defs.bzl", "py_library")
+
 package(default_visibility = ["//visibility:private"])
 
 licenses(["notice"])
+
+py_library(
+    name = "core",
+    srcs = ["__init__.py"],
+    srcs_version = "PY3",
+)

tensorflow_federated/experimental/python/core/__init__.py

+# Copyright 2020, The TensorFlow Federated Authors.
+#
+# 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.

tensorflow_federated/experimental/python/core/api/BUILD

-load("@rules_python//python:defs.bzl", "py_test")
+load("@rules_python//python:defs.bzl", "py_library", "py_test")
 
 package(default_visibility = ["//visibility:private"])
 
@@ -14,3 +14,9 @@ py_test(
         "nopresubmit",
     ],
 )
+
+py_library(
+    name = "api",
+    srcs = ["__init__.py"],
+    srcs_version = "PY3",
+)

tensorflow_federated/experimental/python/core/api/__init__.py

+# Copyright 2020, The TensorFlow Federated Authors.
+#
+# 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.