code: def fontInfoOpenTypeOS2FamilyClassValidator(values):
      """
      Version 2+.
      """
      if not isinstance(values, (list, tuple)):
          return False
      if len(values) != 2:
          return False
      for value in values:
          if not isinstance(value, int):
              return False
      classID, subclassID = values
      if classID < 0 or classID > 14:
          return False
      if subclassID < 0 or subclassID > 15:
          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 15 for calling a global function with example usage: fontInfoOpenTypeOS2FamilyClassValidator(values) and returns: True, False, False, False, False, False