code: def fontInfoPostscriptWindowsCharacterSetValidator(value):
      """
      Version 2+.
      """
      validValues = list(range(1, 21))
      if value not in validValues:
          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 19 for calling a global function with example usage: fontInfoPostscriptWindowsCharacterSetValidator(value) and returns: True, False