code: def _get_system_git_version():
      """Return version of git available system-wide
  
      Might be different from the one we are using, which might be
      bundled with git-annex
      """
      return __get_git_version(_runner)
  
imports: import os.path
  import re
  import sys
  from itertools import chain
  from os import linesep
  from looseversion import LooseVersion
  from datalad.config import get_git_version
  from datalad.log import lgr
  from .exceptions import CapturedException, CommandError
  from datalad.cmd import GitWitlessRunner, StdOutErrCapture, WitlessRunner
  from datalad.support.exceptions import MissingExternalDependency, OutdatedExternalDependency
label_desc: Use image node_id 3 for calling a global function with example usage: _get_system_git_version() and returns: __get_git_version