code: def _resolve_str(val):
      if isinstance(val, config.ConfigValue):
          return str(val.read())
      return val
  
imports: import collections
  import logging
  import re
  import os
  import subprocess
  from guild import config
  from guild import file_util
  from guild import util
  from guild.file_util import FileSelectRule
label_desc: Use image node_id 2 for calling a global function with example usage: _resolve_str(val) and returns: val, str