code: def _touch_file(fname, compressed: bool, empty: bool) -> str:
      if compressed:
          open_func = gzip.open
      else:
          open_func = open
      with open_func(fname, encoding="utf8", mode="wt") as f:
          if not empty:
              for i in range(10):
                  print(str(i), file=f)
      return fname
  
imports: import gzip
  import math
  import os
  import re
  from tempfile import TemporaryDirectory
  import unittest
  import numpy
  import pytest
  import torch
  from sockeye import __version__
  from sockeye import constants
  from sockeye import utils
label_desc: Use image node_id 16 for calling a global function with example usage: _touch_file(fname, compressed, empty) and returns: fname