Merge pull request googleapis#2779 from daspecster/make-annotation-co…

…nstants-private

Make annotation constants private.

vision/google/cloud/vision/annotations.py

@@ -21,17 +21,17 @@
 from google.cloud.vision.safe import SafeSearchAnnotation
 
 
-FACE_ANNOTATIONS = 'faceAnnotations'
-IMAGE_PROPERTIES_ANNOTATION = 'imagePropertiesAnnotation'
-SAFE_SEARCH_ANNOTATION = 'safeSearchAnnotation'
+_FACE_ANNOTATIONS = 'faceAnnotations'
+_IMAGE_PROPERTIES_ANNOTATION = 'imagePropertiesAnnotation'
+_SAFE_SEARCH_ANNOTATION = 'safeSearchAnnotation'
 
 _KEY_MAP = {
- FACE_ANNOTATIONS: 'faces',
- IMAGE_PROPERTIES_ANNOTATION: 'properties',
+ _FACE_ANNOTATIONS: 'faces',
+ _IMAGE_PROPERTIES_ANNOTATION: 'properties',
  'labelAnnotations': 'labels',
  'landmarkAnnotations': 'landmarks',
  'logoAnnotations': 'logos',
- SAFE_SEARCH_ANNOTATION: 'safe_searches',
+ _SAFE_SEARCH_ANNOTATION: 'safe_searches',
  'textAnnotations': 'texts'
 }
 
@@ -105,13 +105,13 @@ def _entity_from_response_type(feature_type, results):
  :class:`~google.cloud.vision.safe.SafeSearchAnnotation`.
  """
  detected_objects = []
- if feature_type == FACE_ANNOTATIONS:
+ if feature_type == _FACE_ANNOTATIONS:
  detected_objects.extend(
  Face.from_api_repr(face) for face in results)
- elif feature_type == IMAGE_PROPERTIES_ANNOTATION:
+ elif feature_type == _IMAGE_PROPERTIES_ANNOTATION:
  detected_objects.append(
  ImagePropertiesAnnotation.from_api_repr(results))
- elif feature_type == SAFE_SEARCH_ANNOTATION:
+ elif feature_type == _SAFE_SEARCH_ANNOTATION:
  detected_objects.append(SafeSearchAnnotation.from_api_repr(results))
  else:
  for result in results: