code: def get_git_remote_default_branch(remote_name):
      """Get the name of the default branch for the given remote
  
      It is typically called 'main', but may differ
      """
      cmd = f"git remote show {remote_name}".split()
      env = os.environ.copy()
      env["LANG"] = "C"
      try:
          remote_info = subprocess.check_output(
              cmd,
              stderr=subprocess.DEVNULL,
              cwd=SRCDIR,
              encoding="UTF-8",
              env=env,
          )
      except subprocess.CalledProcessError:
          return None
      for line in remote_info.splitlines():
          if "HEAD branch:" in line:
              base_branch = line.split(":")[1].strip()
              return base_branch
      return None
  
imports: import re
  import sys
  import shutil
  import os.path
  import subprocess
  import sysconfig
  import reindent
  import untabify
label_desc: Use image node_id 6 for calling a global function with example usage: get_git_remote_default_branch(remote_name) and returns: None, None, base_branch