🎨 format code using black and isort

nonebot/plugins/echo.py

@@ -3,15 +3,18 @@ from functools import reduce
 from nonebot.rule import to_me
 from nonebot.plugin import on_command
 from nonebot.permission import SUPERUSER
-from nonebot.adapters.cqhttp import (Message, MessageEvent, MessageSegment,
-                                     unescape)
+from nonebot.adapters.cqhttp import (
+    Message,
+    MessageEvent,
+    MessageSegment,
+    unescape,
+)
 
 say = on_command("say", to_me(), permission=SUPERUSER)
 
 
 @say.handle()
 async def say_unescape(event: MessageEvent):
-
     def _unescape(message: Message, segment: MessageSegment):
         if segment.is_text():
             return message.append(unescape(str(segment)))