code: def test_bed_reader_on_5_columns_because_mistaken_as_fai(
      self, bed_filename
  ):
      bed_path = test_utils.genomics_core_testdata(bed_filename)
      with self.assertRaisesRegex(
          ValueError,
          "Could not open .*5col.bed. The file might not "
          "exist, or the format detected by htslib might "
          "be incorrect.",
      ):
          _ = bed_reader.BedReader.from_file(
              bed_path, bed_pb2.BedReaderOptions()
          )
  
file_path: deepvariant/third_party/nucleus/io/bed_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import absltest
  from absl.testing import parameterized
  from third_party.nucleus.io import bed
  from third_party.nucleus.io.python import bed_reader
  from third_party.nucleus.protos import bed_pb2
  from third_party.nucleus.testing import test_utils
label_desc: Use image node_id 1 for calling the BedReaderTests obj's underlying member method code with example usage: obj.test_bed_reader_on_5_columns_because_mistaken_as_fai(bed_filename) without return types