code: def to_json(self) -> str:
      return json.dumps(self.to_dict())
  
file_path: hail/hail/python/hailtop/auth/sql_config.py
imports: from typing import Dict, NamedTuple, Optional, Any
  import json
  import os
label_desc: Use image node_id 1 for calling the SQLConfig obj's underlying member method code with example usage: obj.to_json() and returns: json