Create config file and VS code workspace.

config.py

@@ -0,0 +1,24 @@
+import json
+from typing import List
+from pydantic import BaseModel
+
+
+class BlockList(BaseModel):
+    name: str = ''
+    prefix: str = ''
+    postfix: str = ''
+    items: List[str]
+
+
+class Config(BaseModel):
+    class Config:
+        extra = 'forbid'
+
+    blocklists: List[BlockList]
+
+
+def load_config(config_file: str) -> Config:
+    with open(config_file, 'r', encoding='utf8') as f:
+        config_dict = json.load(f)
+    return Config(**config_dict)
+