code: def replace_test_input_files(self):
      # replace the input_file to point to the generated flatbuffer file
      for i, from_file, to_file in self.files_to_be_converted:
          self.test.input_files[i] = to_file
  
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 6 for calling the FlatbufferTest obj's underlying member method code with example usage: obj.replace_test_input_files() without return types