code: def _incompatible_arg_items(val):
      arg1, arg2 = val
      arg1, opt1 = _arg_parts(arg1)
      arg2, opt2 = _arg_parts(arg2)
      return arg1, opt1, arg2, opt2
  
imports: import logging
  import os
  import typing
  from guild import cli
  from guild import click_util
  from guild import config
label_desc: Use image node_id 16 for calling a global function with example usage: _incompatible_arg_items(val) and returns: arg1,  opt1,  arg2,  opt2