import json
from typing import Any, Dict, List

class JsonBuilder:
 def __init__(self):
 self._data: Dict[str, Any] = {}

 def add(self, key: str, value: Any) -> 'JsonBuilder':
 self._data[key] = value
 return self

 def addObject(self, key: str, obj: Dict[str, Any]) -> 'JsonBuilder':
 self._data[key] = obj
 return self

 def addList(self, key: str, lst: List[Any]) -> 'JsonBuilder':
 self._data[key] = lst
 return self

 def addComment(self, key: str, comment: str = "~") -> 'JsonBuilder':
 self._data[key] = comment
 return self

 def toDict(self) -> Dict[str, Any]:
 return self._data

 def toJsonString(self, indent: int = 2, ensureAscii: bool = False) -> str:
 return json.dumps(self._data, indent=indent, ensure_ascii=ensureAscii)