diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..1bf901e
--- /dev/null
+++ b/__init__.py
@@ -0,0 +1,20 @@
+# Copyright 2021 Zilliz. 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 .image_decoder import ImageDecoder
+
+
+# The factory method
+def nvjpeg():
+    return ImageDecoder()
diff --git a/image_decoder.py b/image_decoder.py
index 57c14fa..1f48070 100644
--- a/image_decoder.py
+++ b/image_decoder.py
@@ -89,8 +89,3 @@ class ImageDecoder(PyOperator):
     @property
     def shared_type(self):
         return SharedType.NotShareable
-
-if __name__ == '__main__':
-    d = ImageDecoder()
-    print(d('/home/junjie.jiangjjj/images/1.png'))
-    print(d('/home/junjie.jiangjjj/images/towhee.jpeg'))