small fix

pilab/events/meta.py

@@ -118,9 +118,9 @@ class ImageBinding(BaseModel):
     """
     representation of Image Binding object
     """
-    image_id: int
-    user_data_id: int
-    pi_id: str
+    pi_id: int
+    image_id: Optional[int]
+    user_data_id: Optional[int]
 
 class Script(BaseModel):
     id: int

setup.py

@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 
 setup(
     name='pilab',
-    version='5.1.3',
+    version='5.1.4',
     description='Shared-Libs for the pi-lab microservices',
     url='https://code.fbi.h-da.de/api/v4/projects/27896/packages/pypi/pilab',
     author='Max Reinheimer',