code: def to_json(
      self, file: StrOrBytesPath, progress=noop
  ):  # noqa: ARG002
      import pandas as pd
  
      df = pd.read_sql(self.sql, self.con)
      with atomic_file(file) as f:
          df.to_json(f, orient="records")
  
imports: import os
  from contextlib import contextmanager
  from dataclasses import dataclass
  from tempfile import NamedTemporaryFile
  from typing import TYPE_CHECKING, Any, Callable, Dict, Iterator, Optional, Union
  from sqlalchemy import create_engine
  from sqlalchemy.engine import make_url
  from sqlalchemy.exc import NoSuchModuleError
  from dvc import env
  from dvc.exceptions import DvcException
  from dvc.log import logger
  from dvc.types import StrOrBytesPath
  from dvc.utils import env2bool
label_desc: Use image node_id 2 for calling the Serializer obj's underlying member method code with example usage: obj.to_json(file, progress) without return types