lint: blackify

diagrams/__init__.py

@@ -143,7 +143,7 @@ class Diagram:
         setdiagram(None)
 
     def _repr_png_(self):
-        return self.dot.pipe(format='png')
+        return self.dot.pipe(format="png")
 
     def _validate_direction(self, direction: str) -> bool:
         direction = direction.upper()
@@ -403,7 +403,8 @@ class Edge:
         "fontsize": "13",
     }
 
-    def __init__(self,
+    def __init__(
+        self,
         node: "Node" = None,
         forward: bool = False,
         reverse: bool = False,
@@ -504,15 +505,14 @@ class Edge:
     @property
     def attrs(self) -> Dict:
         if self.forward and self.reverse:
-            direction = 'both'
+            direction = "both"
         elif self.forward:
-            direction = 'forward'
+            direction = "forward"
         elif self.reverse:
-            direction = 'back'
+            direction = "back"
         else:
-            direction = 'none'
-
-        return {**self._attrs, 'dir': direction}
+            direction = "none"
+        return {**self._attrs, "dir": direction}
 
 
 Group = Cluster