code: def _android_folder() -> str | None:
      """:return: base folder for the Android OS or None if it cannot be found"""
      try:
          # First try to get path to android app via pyjnius
          from jnius import autoclass
  
          context = autoclass("android.content.Context")
          result: str | None = (
              context.getFilesDir().getParentFile().getAbsolutePath()
          )
      except Exception:  # noqa: BLE001
          # if fails find an android folder looking path on the sys.path
          pattern = re.compile(r"/data/(data|user/\d+)/(.+)/files")
          for path in sys.path:
              if pattern.match(path):
                  result = path.split("/files")[0]
                  break
          else:
              result = None
      return result
  
imports: from __future__ import annotations
  import os
  import re
  import sys
  from functools import lru_cache
  from typing import cast
  from .api import PlatformDirsABC
label_desc: Use image node_id 1 for calling a global function with example usage: _android_folder() and returns: result