code: def uppercase_range(code1, code2):
      """
      If the range of characters from code1 to code2-1 includes any
      lower case letters, return the corresponding upper case range.
      """
      code3 = max(code1, ord("a"))
      code4 = min(code2, ord("z") + 1)
      if code3 < code4:
          d = ord("A") - ord("a")
          return (code3 + d, code4 + d)
      else:
          return None
  
imports: from __future__ import absolute_import
  import types
  from .None import Errors
label_desc: Use image node_id 2 for calling a global function with example usage: uppercase_range(code1, code2) and returns: unknown,  unknown, None