code: def _is_native_file(filename):
      """Returns true if filename is a native (non-tfrecord) genomics data file."""
      return not re.match(r".*\.tfrecord(\.gz)?", filename)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import re
  import sys
  import time
  from absl import app
  from absl import logging
  from third_party.nucleus.io import bed
  from third_party.nucleus.io import fastq
  from third_party.nucleus.io import gff
  from third_party.nucleus.io import sam
  from third_party.nucleus.io import vcf
label_desc: Use image node_id 1 for calling a global function with example usage: _is_native_file(filename) and returns: unknown