add license info

README.md

@@ -1,2 +1,5 @@
 # SmoothCache
 Implementation of SmoothCache, a project aimed at speeding-up Diffusion Transformer (DiT) based GenAI models with error-guided caching.
+
+# License
+SmoothCache is licensed under the [Apache-2.0](LICENSE) license.

SmoothCache/diffuser_cache_helper.py

@@ -1,4 +1,19 @@
-# SmoothCache/diffuser_cache_helper.py
+# Copyright 2022 Roblox Corporation
+
+# 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
+
+#     https://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.
+
+"""Helper Class for Diffusion Transformer Implemented at 
+   https://github.com/huggingface/diffusers/tree/main/src/diffusers/pipelines/dit"""
 
 from .smooth_cache_helper import SmoothCacheHelper
 

SmoothCache/dit_cache_helper.py

@@ -1,4 +1,19 @@
-# SmoothCache/dit_cache_helper.py
+# Copyright 2022 Roblox Corporation
+
+# 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
+
+#     https://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.
+
+"""Helper Class for Diffusion Transformer Implemented at 
+   https://github.com/facebookresearch/DiT"""
 
 from .smooth_cache_helper import SmoothCacheHelper
 

SmoothCache/smooth_cache_helper.py

@@ -1,4 +1,18 @@
-# SmoothCache/smooth_cache_helper.py
+# Copyright 2022 Roblox Corporation
+
+# 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
+
+#     https://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.
+
+"""Core SmoothCache Helper Implementation"""
 
 from typing import Dict, Any, Optional, List, Union, Type
 import torch