class_docstr: On Unix/Linux, we follow the
  `XDG Basedir Spec <https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html>`_. The spec allows
  overriding directories with environment variables. The examples show are the default values, alongside the name of
  the environment variable that overrides them. Makes use of the
  `appname <platformdirs.api.PlatformDirsABC.appname>`,
  `version <platformdirs.api.PlatformDirsABC.version>`,
  `multipath <platformdirs.api.PlatformDirsABC.multipath>`,
  `opinion <platformdirs.api.PlatformDirsABC.opinion>`.
code: def _with_multi_path(self, path: str) -> str:
      path_list = path.split(os.pathsep)
      if not self.multipath:
          path_list = path_list[0:1]
      path_list = [
          self._append_app_name_and_version(os.path.expanduser(p))
          for p in path_list
      ]
      return os.pathsep.join(path_list)
  
imports: from __future__ import annotations
  import os
  import sys
  from configparser import ConfigParser
  from pathlib import Path
  from .api import PlatformDirsABC
label_desc: Use image node_id 3 for calling the Unix obj's underlying member method code with example usage: obj._with_multi_path(path) and returns: os