code: def replace_line(self, line):
      for index, from_file, to_file in self.files_to_be_converted:
          line = line.replace(from_file, to_file)
      return line
  
imports: import copy
  import os
  import os.path
  import shlex
  import subprocess
  from pathlib import Path
  import re
  from typing import List, Optional, Tuple
  from run_tests_common import TestData
label_desc: Use image node_id 4 for calling the FlatbufferTest obj's underlying member method code with example usage: obj.replace_line(line) and returns: line