Fix issues

example/config.yaml

@@ -0,0 +1,19 @@
+db:
+  host: 127.0.0.1
+  username: test
+  password: 123456
+
+groups:
+  - name: admin
+    priority: 100
+    permissions:
+      - ban_user
+      - ro_user
+      - invite_user
+      - promote_user
+
+  - name: moderator
+    priority: 50
+    permissions:
+      - invite_user
+      - ro_user

example/simple.py

@@ -0,0 +1,28 @@
+from dataclasses import dataclass
+
+from kissconfig import load_config, ConfigClass
+
+
+@dataclass
+class Database (ConfigClass):
+    host: str
+    username: str
+    password: str
+
+
+@dataclass
+class Group (ConfigClass):
+    name: str
+    priority: int
+    permissions: list[str]
+
+
+@dataclass
+class Config (ConfigClass):
+    db: Database
+    groups: list[Group]
+
+
+if __name__ == "__main__":
+    config = load_config(Config, "config.yaml")
+    print(config)