code: def _query_fileobj(
      self,
      ext,
      dtype,
      sample_rate,
      num_channels,
      num_frames,
      *,
      comments=None,
  ):
      path = self._gen_file(
          ext,
          dtype,
          sample_rate,
          num_channels,
          num_frames,
          comments=comments,
      )
      with open(path, "rb") as fileobj:
          return self._info(fileobj, None)
  
imports: import itertools
  import os
  from functools import partial
  from parameterized import parameterized
  from torchaudio._backend.utils import get_info_func
  from torchaudio._internal import module_utils
  from torchaudio_unittest.backend.common import get_encoding
  from torchaudio_unittest.common_utils import disabledInCI, get_asset_path, get_wav_data, HttpServerMixin, PytorchTestCase, save_wav, skipIfNoExec, skipIfNoModule, skipIfNoSox, skipIfNoSoxDecoder, sox_utils, TempDirMixin
  from .common import name_func
label_desc: Use image node_id 1 for calling the TestFileObject obj's underlying member method code with example usage: obj._query_fileobj(ext, dtype, sample_rate, num_channels, num_frames) and returns: self