class_docstr: Normalizer tests
class_docstr_tok: ["Normalizer","tests"]
code: def _normalized_type_region(cls):
      return NormalizedType(
          "test_log_type",
          "region",
          [
              {"path": ["region"], "function": "AWS region"},
              {
                  "path": ["detail", "awsRegion"],
                  "function": "AWS region",
              },
          ],
      )
  
imports: from mock import Mock, patch
  from nose.tools import assert_equal, assert_false, assert_raises, assert_true
  from streamalert.shared.exceptions import ConfigError
  from streamalert.shared.normalize import Normalizer, NormalizedType
  from tests.unit.streamalert.shared.test_utils import MOCK_RECORD_ID
label_desc: Use image node_id 4 for calling the TestNormalizer obj's underlying member method code with example usage: obj._normalized_type_region(cls) and returns: NormalizedType