code: def change_generated_target_suffix (type, properties, suffix):
      
      assert isinstance(type, basestring)
      assert is_iterable_typed(properties, basestring)
      assert isinstance(suffix, basestring)
      change_generated_target_ps(1, type, properties, suffix)
docs: Change the suffix previously registered for this type/properties
          combination. If suffix is not yet specified, sets it.