code: def is_number(string):
      try:
          float(string)
          return True
      except ValueError:
          pass
  
      try:
          unicodedata.numeric(string)
          return True
      except (TypeError, ValueError):
          pass
  
      return False
  
imports: import builtins
  import json
  import os
  import unicodedata
  from typing import Any, List, Optional, Tuple
label_desc: Use image node_id 15 for calling a global function with example usage: is_number(string) and returns: False, True, True