code: def get_home_dir(require_writable=False) -> str:
      """Return the 'home' directory, as a unicode string.
  
      Uses os.path.expanduser('~'), and checks for writability.
  
      See stdlib docs for how this is determined.
      For Python <3.8, $HOME is first priority on *ALL* platforms.
      For Python >=3.8 on Windows, %HOME% is no longer considered.
  
      Parameters
      ----------
      require_writable : bool [default: False]
          if True:
              guarantees the return value is a writable directory, otherwise
              raises HomeDirError
          if False:
              The path is resolved, but it is not guaranteed to exist or be writable.
      """
  
      homedir = os.path.expanduser("~")
      # Next line will make things work even when /home/ is a symlink to
      # /usr/home as it is on FreeBSD, for example
      homedir = os.path.realpath(homedir)
  
      if not _writable_dir(homedir) and os.name == "nt":
          # expanduser failed, use the registry to get the 'My Documents' folder.
          try:
              import winreg as wreg
  
              with wreg.OpenKey(
                  wreg.HKEY_CURRENT_USER,
                  r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders",
              ) as key:
                  homedir = wreg.QueryValueEx(key, "Personal")[0]
          except:
              pass
  
      if (not require_writable) or _writable_dir(homedir):
          assert isinstance(
              homedir, str
          ), "Homedir should be unicode not bytes"
          return homedir
      else:
          raise HomeDirError(
              "%s is not a writable dir, "
              "set $HOME environment variable to override" % homedir
          )
  
imports: import os
  import sys
  import errno
  import shutil
  import random
  import glob
  from IPython.utils.process import system
label_desc: Use image node_id 6 for calling a global function with example usage: get_home_dir(require_writable) and returns: homedir