Make all annotation types constants.

daspecster · daspecster · commit 1bfd25f6a300 · 2016-11-11T13:44:35.000-05:00
diff --git a/vision/google/cloud/vision/image.py b/vision/google/cloud/vision/image.py
@@ -29,16 +29,20 @@
 
 _FACE_DETECTION = 'FACE_DETECTION'
 _IMAGE_PROPERTIES = 'IMAGE_PROPERTIES'
+_LABEL_DETECTION = 'LABEL_DETECTION'
+_LANDMARK_DETECTION = 'LANDMARK_DETECTION'
+_LOGO_DETECTION = 'LOGO_DETECTION'
 _SAFE_SEARCH_DETECTION = 'SAFE_SEARCH_DETECTION'
+_TEXT_DETECTION = 'TEXT_DETECTION'
 
 _REVERSE_TYPES = {
     _FACE_DETECTION: 'faceAnnotations',
     _IMAGE_PROPERTIES: 'imagePropertiesAnnotation',
-    'LABEL_DETECTION': 'labelAnnotations',
-    'LANDMARK_DETECTION': 'landmarkAnnotations',
-    'LOGO_DETECTION': 'logoAnnotations',
+    _LABEL_DETECTION: 'labelAnnotations',
+    _LANDMARK_DETECTION: 'landmarkAnnotations',
+    _LOGO_DETECTION: 'logoAnnotations',
     _SAFE_SEARCH_DETECTION: 'safeSearchAnnotation',
-    'TEXT_DETECTION': 'textAnnotations',
+    _TEXT_DETECTION: 'textAnnotations',
 }
 
 
