code: def test_lower(value):
      """Return true if the variable is lowercased."""
      return text_type(value).islower()
  
imports: import decimal
  import operator
  import re
  from ._compat import abc
  from ._compat import integer_types
  from ._compat import string_types
  from ._compat import text_type
  from .runtime import Undefined
label_desc: Use image node_id 12 for calling a global function with example usage: test_lower(value) and returns: text_type