code: def _flag_arg_split(val):
      return True if isinstance(val, list) else None
  
imports: import logging
  import os
  from guild import cli
  from guild import guildfile
  from guild import util
  from guild import yaml_util
label_desc: Use image node_id 11 for calling a global function with example usage: _flag_arg_split(val) and returns: unknown