code: def run(self, grammar, debugger):
      def iterate():
          fm = None
          for _ in range(self._test_count):
              fm = FileModification.generate(
                  self._code_lines,
                  self._change_count,
                  previous_file_modification=fm,
              )
              self._file_modifications.append(fm)
              yield fm
  
      self._run(grammar, iterate(), debugger)
  
imports: from __future__ import print_function
  import logging
  import sys
  import os
  import random
  import pickle
  import parso
  from parso.utils import split_lines
  from test.test_diff_parser import _check_error_leaves_nodes
label_desc: Use image node_id 4 for calling the FileTests obj's underlying member method code with example usage: obj.run(grammar, debugger) without return types