diff --git a/openpype/pipeline/__init__.py b/openpype/pipeline/__init__.py
index 7316753785..88c6d696f1 100644
--- a/openpype/pipeline/__init__.py
+++ b/openpype/pipeline/__init__.py
@@ -1,15 +1,22 @@
+from .lib import attribute_definitions
+
 from .creator_plugins import (
     BaseCreator,
     Creator,
-    AutoCreator
+    AutoCreator,
+    AvalonInstance
 )
 
 from .publish_plugins import OpenPypePyblishPluginMixin
 
+
 __all__ = (
+    "attribute_definitions",
+
     "BaseCreator",
     "Creator",
     "AutoCreator",
+    "AvalonInstance",
 
     "OpenPypePyblishPluginMixin"
 )