style: reformat

diagrams/__init__.py

@@ -342,7 +342,7 @@ class Node:
             return other
 
     def __rsub__(self, other: Union[List["Node"], List["Edge"]]):
-        """ Called for [Nodes] and [Edges] - Self because list don't have __sub__ operators. """
+        """Called for [Nodes] and [Edges] - Self because list don't have __sub__ operators."""
         for o in other:
             if isinstance(o, Edge):
                 o.connect(self)