code: def getGitRepoForFile(self, fileName):
      if not self.isInsideGitRepo(fileName):
          return None
      try:
          gitProcess = subprocess.Popen(
              ["git", "rev-parse", "--show-toplevel"],
              stdin=subprocess.PIPE,
              stdout=subprocess.PIPE,
              stderr=subprocess.PIPE,
              cwd=os.path.dirname(fileName),
          )
          gitOutput, _ = gitProcess.communicate()
          if gitProcess.returncode == 0:
              return gitOutput.rstrip("\r\n")
      except OSError:
          cprint(
              "[ERROR] Failed to run 'git rev-parse --show-toplevel' for "
              + fileName,
              "red",
          )
      return None
  
imports: import argparse
  import filecmp
  import os
  import re
  import sets
  import subprocess
  import sys
  from termcolor import cprint
label_desc: Use image node_id 12 for calling the CodeFormat obj's underlying member method code with example usage: obj.getGitRepoForFile(fileName) and returns: None, None, gitOutput