code: def _flag_type(val):
      if isinstance(val, str):
          return "string"
      if isinstance(val, bool):
          return "boolean"
      if isinstance(val, (int, float)):
          return "number"
      return None
  
imports: import ast
  import json
  import logging
  import os
  import re
  from guild import config
  from guild import guildfile
  from guild import model
  from guild import plugin
  from guild import python_util
  from guild import util
  from .None import flags_import_util
label_desc: Use image node_id 27 for calling a global function with example usage: _flag_type(val) and returns: None, str, str, str