code: def json_to_file(self, json_path, arrow_path):
      return self._run(json_path, arrow_path, "json-to-arrow")
  
imports: from contextlib import contextmanager
  import os
  from .None import cdata
  from .tester import Tester, CDataExporter, CDataImporter
  from .util import run_cmd, log
  from ..utils.source import ARROW_ROOT_DEFAULT
label_desc: Use image node_id 3 for calling the CSharpTester obj's underlying member method code with example usage: obj.json_to_file(json_path, arrow_path) and returns: self