add types

nonebot/utils.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import json
+import dataclasses
+
+from nonebot.typing import overrides
+
+
+class DataclassEncoder(json.JSONEncoder):
+
+    @overrides(json.JSONEncoder)
+    def default(self, o):
+        if dataclasses.is_dataclass(o):
+            return dataclasses.asdict(o)
+        return super().default(o)