STY: autopep8 on high level api

src/caosdb/high_level_api.py

@@ -827,7 +827,7 @@ def _single_convert_to_python_object(robj: CaosDBPythonEntity,
 
     Returns the input object robj.
     """
-    
+
     # This parameter is used in the recursion to keep track of already visited
     # entites (in order to detect cycles).
     if visited is None:
@@ -837,7 +837,7 @@ def _single_convert_to_python_object(robj: CaosDBPythonEntity,
         return visited[id(entity)]
     else:
         visited[id(entity)] = robj
-        
+
     for base_attribute in BASE_ATTRIBUTES:
         val = entity.__getattribute__(base_attribute)
         if val is not None: