code: def identifierValidator(value):
      """
      Version 3+.
  
      >>> identifierValidator("a")
      True
      >>> identifierValidator("")
      False
      >>> identifierValidator("a" * 101)
      False
      """
      validCharactersMin = 0x20
      validCharactersMax = 0x7E
      if not isinstance(value, str):
          return False
      if not value:
          return False
      if len(value) > 100:
          return False
      for c in value:
          c = ord(c)
          if c < validCharactersMin or c > validCharactersMax:
              return False
      return True
  
imports: import calendar
  from io import open
  import fs.base
  import fs.osfs
  from collections.abc import Mapping
  from fontTools.ufoLib.utils import numberTypes
label_desc: Use image node_id 38 for calling a global function with example usage: identifierValidator(value) and returns: True, False, False, False, False