diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/services/image_annotator/client.py b/packages/google-cloud-vision/google/cloud/vision_v1/services/image_annotator/client.py
index f915f42e6386..aa3ca43588b7 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/services/image_annotator/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/services/image_annotator/client.py
@@ -944,7 +944,7 @@ def sample_async_batch_annotate_files():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ImageAnnotatorClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/services/product_search/client.py b/packages/google-cloud-vision/google/cloud/vision_v1/services/product_search/client.py
index 2f49a6581369..ccb048768997 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/services/product_search/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/services/product_search/client.py
@@ -2863,7 +2863,7 @@ def sample_purge_products():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ProductSearchClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/types/image_annotator.py b/packages/google-cloud-vision/google/cloud/vision_v1/types/image_annotator.py
index 371727b48b86..76790bc0f494 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/types/image_annotator.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/types/image_annotator.py
@@ -77,6 +77,20 @@
 class Likelihood(proto.Enum):
     r"""A bucketized representation of likelihood, which is intended
     to give clients highly stable results across model upgrades.
+
+    Values:
+        UNKNOWN (0):
+            Unknown likelihood.
+        VERY_UNLIKELY (1):
+            It is very unlikely.
+        UNLIKELY (2):
+            It is unlikely.
+        POSSIBLE (3):
+            It is possible.
+        LIKELY (4):
+            It is likely.
+        VERY_LIKELY (5):
+            It is very likely.
     """
     UNKNOWN = 0
     VERY_UNLIKELY = 1
@@ -107,7 +121,43 @@ class Feature(proto.Message):
     """
 
     class Type(proto.Enum):
-        r"""Type of Google Cloud Vision API feature to be extracted."""
+        r"""Type of Google Cloud Vision API feature to be extracted.
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Unspecified feature type.
+            FACE_DETECTION (1):
+                Run face detection.
+            LANDMARK_DETECTION (2):
+                Run landmark detection.
+            LOGO_DETECTION (3):
+                Run logo detection.
+            LABEL_DETECTION (4):
+                Run label detection.
+            TEXT_DETECTION (5):
+                Run text detection / optical character recognition (OCR).
+                Text detection is optimized for areas of text within a
+                larger image; if the image is a document, use
+                ``DOCUMENT_TEXT_DETECTION`` instead.
+            DOCUMENT_TEXT_DETECTION (11):
+                Run dense text document OCR. Takes precedence when both
+                ``DOCUMENT_TEXT_DETECTION`` and ``TEXT_DETECTION`` are
+                present.
+            SAFE_SEARCH_DETECTION (6):
+                Run Safe Search to detect potentially unsafe
+                or undesirable content.
+            IMAGE_PROPERTIES (7):
+                Compute a set of image properties, such as
+                the image's dominant colors.
+            CROP_HINTS (9):
+                Run crop hints.
+            WEB_DETECTION (10):
+                Run web detection.
+            PRODUCT_SEARCH (12):
+                Run Product Search.
+            OBJECT_LOCALIZATION (19):
+                Run localizer for object detection.
+        """
         TYPE_UNSPECIFIED = 0
         FACE_DETECTION = 1
         LANDMARK_DETECTION = 2
@@ -283,6 +333,83 @@ class Type(proto.Enum):
             vantage of the viewer of the image without considering mirror
             projections typical of photos. So, ``LEFT_EYE``, typically, is the
             person's right eye.
+
+            Values:
+                UNKNOWN_LANDMARK (0):
+                    Unknown face landmark detected. Should not be
+                    filled.
+                LEFT_EYE (1):
+                    Left eye.
+                RIGHT_EYE (2):
+                    Right eye.
+                LEFT_OF_LEFT_EYEBROW (3):
+                    Left of left eyebrow.
+                RIGHT_OF_LEFT_EYEBROW (4):
+                    Right of left eyebrow.
+                LEFT_OF_RIGHT_EYEBROW (5):
+                    Left of right eyebrow.
+                RIGHT_OF_RIGHT_EYEBROW (6):
+                    Right of right eyebrow.
+                MIDPOINT_BETWEEN_EYES (7):
+                    Midpoint between eyes.
+                NOSE_TIP (8):
+                    Nose tip.
+                UPPER_LIP (9):
+                    Upper lip.
+                LOWER_LIP (10):
+                    Lower lip.
+                MOUTH_LEFT (11):
+                    Mouth left.
+                MOUTH_RIGHT (12):
+                    Mouth right.
+                MOUTH_CENTER (13):
+                    Mouth center.
+                NOSE_BOTTOM_RIGHT (14):
+                    Nose, bottom right.
+                NOSE_BOTTOM_LEFT (15):
+                    Nose, bottom left.
+                NOSE_BOTTOM_CENTER (16):
+                    Nose, bottom center.
+                LEFT_EYE_TOP_BOUNDARY (17):
+                    Left eye, top boundary.
+                LEFT_EYE_RIGHT_CORNER (18):
+                    Left eye, right corner.
+                LEFT_EYE_BOTTOM_BOUNDARY (19):
+                    Left eye, bottom boundary.
+                LEFT_EYE_LEFT_CORNER (20):
+                    Left eye, left corner.
+                RIGHT_EYE_TOP_BOUNDARY (21):
+                    Right eye, top boundary.
+                RIGHT_EYE_RIGHT_CORNER (22):
+                    Right eye, right corner.
+                RIGHT_EYE_BOTTOM_BOUNDARY (23):
+                    Right eye, bottom boundary.
+                RIGHT_EYE_LEFT_CORNER (24):
+                    Right eye, left corner.
+                LEFT_EYEBROW_UPPER_MIDPOINT (25):
+                    Left eyebrow, upper midpoint.
+                RIGHT_EYEBROW_UPPER_MIDPOINT (26):
+                    Right eyebrow, upper midpoint.
+                LEFT_EAR_TRAGION (27):
+                    Left ear tragion.
+                RIGHT_EAR_TRAGION (28):
+                    Right ear tragion.
+                LEFT_EYE_PUPIL (29):
+                    Left eye pupil.
+                RIGHT_EYE_PUPIL (30):
+                    Right eye pupil.
+                FOREHEAD_GLABELLA (31):
+                    Forehead glabella.
+                CHIN_GNATHION (32):
+                    Chin gnathion.
+                CHIN_LEFT_GONION (33):
+                    Chin left gonion.
+                CHIN_RIGHT_GONION (34):
+                    Chin right gonion.
+                LEFT_CHEEK_CENTER (35):
+                    Left cheek center.
+                RIGHT_CHEEK_CENTER (36):
+                    Right cheek center.
             """
             UNKNOWN_LANDMARK = 0
             LEFT_EYE = 1
@@ -1559,7 +1686,20 @@ class OperationMetadata(proto.Message):
     """
 
     class State(proto.Enum):
-        r"""Batch operation states."""
+        r"""Batch operation states.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            CREATED (1):
+                Request is received.
+            RUNNING (2):
+                Request is actively being processed.
+            DONE (3):
+                The batch processing is done.
+            CANCELLED (4):
+                The batch processing was cancelled.
+        """
         STATE_UNSPECIFIED = 0
         CREATED = 1
         RUNNING = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/types/product_search_service.py b/packages/google-cloud-vision/google/cloud/vision_v1/types/product_search_service.py
index 3b91b3e79e90..24f715c36748 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/types/product_search_service.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/types/product_search_service.py
@@ -997,6 +997,24 @@ class BatchOperationMetadata(proto.Message):
     class State(proto.Enum):
         r"""Enumerates the possible states that the batch request can be
         in.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            PROCESSING (1):
+                Request is actively being processed.
+            SUCCESSFUL (2):
+                The request is done and at least one item has
+                been successfully processed.
+            FAILED (3):
+                The request is done and no item has been
+                successfully processed.
+            CANCELLED (4):
+                The request is done after the
+                longrunning.Operations.CancelOperation has been
+                called by the user.  Any records that were
+                processed before the cancel command are output
+                as specified in the request.
         """
         STATE_UNSPECIFIED = 0
         PROCESSING = 1
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/types/text_annotation.py b/packages/google-cloud-vision/google/cloud/vision_v1/types/text_annotation.py
index 2298ad0b88bd..febc99632d0d 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/types/text_annotation.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/types/text_annotation.py
@@ -82,7 +82,24 @@ class DetectedBreak(proto.Message):
         """
 
         class BreakType(proto.Enum):
-            r"""Enum to denote the type of break found. New line, space etc."""
+            r"""Enum to denote the type of break found. New line, space etc.
+
+            Values:
+                UNKNOWN (0):
+                    Unknown break label type.
+                SPACE (1):
+                    Regular space.
+                SURE_SPACE (2):
+                    Sure space (very wide).
+                EOL_SURE_SPACE (3):
+                    Line-wrapping break.
+                HYPHEN (4):
+                    End-line hyphen that is not present in text; does not
+                    co-occur with ``SPACE``, ``LEADER_SPACE``, or
+                    ``LINE_BREAK``.
+                LINE_BREAK (5):
+                    Line break that ends a paragraph.
+            """
             UNKNOWN = 0
             SPACE = 1
             SURE_SPACE = 2
@@ -221,7 +238,22 @@ class Block(proto.Message):
     """
 
     class BlockType(proto.Enum):
-        r"""Type of a block (text, image etc) as identified by OCR."""
+        r"""Type of a block (text, image etc) as identified by OCR.
+
+        Values:
+            UNKNOWN (0):
+                Unknown block type.
+            TEXT (1):
+                Regular text block.
+            TABLE (2):
+                Table block.
+            PICTURE (3):
+                Image block.
+            RULER (4):
+                Horizontal/vertical line box.
+            BARCODE (5):
+                Barcode block.
+        """
         UNKNOWN = 0
         TEXT = 1
         TABLE = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/services/image_annotator/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/services/image_annotator/client.py
index 204442d41946..bb3945a7c740 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/services/image_annotator/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/services/image_annotator/client.py
@@ -524,7 +524,7 @@ def sample_batch_annotate_images():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ImageAnnotatorClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/image_annotator.py b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/image_annotator.py
index c2d0d4644970..e68965ac088e 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/image_annotator.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/image_annotator.py
@@ -58,6 +58,25 @@
 class Likelihood(proto.Enum):
     r"""A bucketized representation of likelihood, which is intended
     to give clients highly stable results across model upgrades.
+
+    Values:
+        UNKNOWN (0):
+            Unknown likelihood.
+        VERY_UNLIKELY (1):
+            It is very unlikely that the image belongs to
+            the specified vertical.
+        UNLIKELY (2):
+            It is unlikely that the image belongs to the
+            specified vertical.
+        POSSIBLE (3):
+            It is possible that the image belongs to the
+            specified vertical.
+        LIKELY (4):
+            It is likely that the image belongs to the
+            specified vertical.
+        VERY_LIKELY (5):
+            It is very likely that the image belongs to
+            the specified vertical.
     """
     UNKNOWN = 0
     VERY_UNLIKELY = 1
@@ -88,7 +107,35 @@ class Feature(proto.Message):
     """
 
     class Type(proto.Enum):
-        r"""Type of image feature."""
+        r"""Type of image feature.
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Unspecified feature type.
+            FACE_DETECTION (1):
+                Run face detection.
+            LANDMARK_DETECTION (2):
+                Run landmark detection.
+            LOGO_DETECTION (3):
+                Run logo detection.
+            LABEL_DETECTION (4):
+                Run label detection.
+            TEXT_DETECTION (5):
+                Run OCR.
+            DOCUMENT_TEXT_DETECTION (11):
+                Run dense text document OCR. Takes precedence when both
+                DOCUMENT_TEXT_DETECTION and TEXT_DETECTION are present.
+            SAFE_SEARCH_DETECTION (6):
+                Run computer vision models to compute image
+                safe-search properties.
+            IMAGE_PROPERTIES (7):
+                Compute a set of image properties, such as
+                the image's dominant colors.
+            CROP_HINTS (9):
+                Run crop hints.
+            WEB_DETECTION (10):
+                Run web detection.
+        """
         TYPE_UNSPECIFIED = 0
         FACE_DETECTION = 1
         LANDMARK_DETECTION = 2
@@ -249,6 +296,79 @@ class Type(proto.Enum):
             vantage of the viewer of the image without considering mirror
             projections typical of photos. So, ``LEFT_EYE``, typically, is the
             person's right eye.
+
+            Values:
+                UNKNOWN_LANDMARK (0):
+                    Unknown face landmark detected. Should not be
+                    filled.
+                LEFT_EYE (1):
+                    Left eye.
+                RIGHT_EYE (2):
+                    Right eye.
+                LEFT_OF_LEFT_EYEBROW (3):
+                    Left of left eyebrow.
+                RIGHT_OF_LEFT_EYEBROW (4):
+                    Right of left eyebrow.
+                LEFT_OF_RIGHT_EYEBROW (5):
+                    Left of right eyebrow.
+                RIGHT_OF_RIGHT_EYEBROW (6):
+                    Right of right eyebrow.
+                MIDPOINT_BETWEEN_EYES (7):
+                    Midpoint between eyes.
+                NOSE_TIP (8):
+                    Nose tip.
+                UPPER_LIP (9):
+                    Upper lip.
+                LOWER_LIP (10):
+                    Lower lip.
+                MOUTH_LEFT (11):
+                    Mouth left.
+                MOUTH_RIGHT (12):
+                    Mouth right.
+                MOUTH_CENTER (13):
+                    Mouth center.
+                NOSE_BOTTOM_RIGHT (14):
+                    Nose, bottom right.
+                NOSE_BOTTOM_LEFT (15):
+                    Nose, bottom left.
+                NOSE_BOTTOM_CENTER (16):
+                    Nose, bottom center.
+                LEFT_EYE_TOP_BOUNDARY (17):
+                    Left eye, top boundary.
+                LEFT_EYE_RIGHT_CORNER (18):
+                    Left eye, right corner.
+                LEFT_EYE_BOTTOM_BOUNDARY (19):
+                    Left eye, bottom boundary.
+                LEFT_EYE_LEFT_CORNER (20):
+                    Left eye, left corner.
+                RIGHT_EYE_TOP_BOUNDARY (21):
+                    Right eye, top boundary.
+                RIGHT_EYE_RIGHT_CORNER (22):
+                    Right eye, right corner.
+                RIGHT_EYE_BOTTOM_BOUNDARY (23):
+                    Right eye, bottom boundary.
+                RIGHT_EYE_LEFT_CORNER (24):
+                    Right eye, left corner.
+                LEFT_EYEBROW_UPPER_MIDPOINT (25):
+                    Left eyebrow, upper midpoint.
+                RIGHT_EYEBROW_UPPER_MIDPOINT (26):
+                    Right eyebrow, upper midpoint.
+                LEFT_EAR_TRAGION (27):
+                    Left ear tragion.
+                RIGHT_EAR_TRAGION (28):
+                    Right ear tragion.
+                LEFT_EYE_PUPIL (29):
+                    Left eye pupil.
+                RIGHT_EYE_PUPIL (30):
+                    Right eye pupil.
+                FOREHEAD_GLABELLA (31):
+                    Forehead glabella.
+                CHIN_GNATHION (32):
+                    Chin gnathion.
+                CHIN_LEFT_GONION (33):
+                    Chin left gonion.
+                CHIN_RIGHT_GONION (34):
+                    Chin right gonion.
             """
             UNKNOWN_LANDMARK = 0
             LEFT_EYE = 1
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/text_annotation.py b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/text_annotation.py
index 2b3071337175..294fdbe11ab9 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/text_annotation.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/types/text_annotation.py
@@ -82,7 +82,24 @@ class DetectedBreak(proto.Message):
         """
 
         class BreakType(proto.Enum):
-            r"""Enum to denote the type of break found. New line, space etc."""
+            r"""Enum to denote the type of break found. New line, space etc.
+
+            Values:
+                UNKNOWN (0):
+                    Unknown break label type.
+                SPACE (1):
+                    Regular space.
+                SURE_SPACE (2):
+                    Sure space (very wide).
+                EOL_SURE_SPACE (3):
+                    Line-wrapping break.
+                HYPHEN (4):
+                    End-line hyphen that is not present in text; does not
+                    co-occur with ``SPACE``, ``LEADER_SPACE``, or
+                    ``LINE_BREAK``.
+                LINE_BREAK (5):
+                    Line break that ends a paragraph.
+            """
             UNKNOWN = 0
             SPACE = 1
             SURE_SPACE = 2
@@ -206,7 +223,22 @@ class Block(proto.Message):
     """
 
     class BlockType(proto.Enum):
-        r"""Type of a block (text, image etc) as identified by OCR."""
+        r"""Type of a block (text, image etc) as identified by OCR.
+
+        Values:
+            UNKNOWN (0):
+                Unknown block type.
+            TEXT (1):
+                Regular text block.
+            TABLE (2):
+                Table block.
+            PICTURE (3):
+                Image block.
+            RULER (4):
+                Horizontal/vertical line box.
+            BARCODE (5):
+                Barcode block.
+        """
         UNKNOWN = 0
         TEXT = 1
         TABLE = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/services/image_annotator/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/services/image_annotator/client.py
index ba233b13a254..ea05405e8ea5 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/services/image_annotator/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/services/image_annotator/client.py
@@ -651,7 +651,7 @@ def sample_async_batch_annotate_files():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ImageAnnotatorClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/image_annotator.py b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/image_annotator.py
index a0ca57ada0af..929c76484eb4 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/image_annotator.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/image_annotator.py
@@ -70,6 +70,25 @@
 class Likelihood(proto.Enum):
     r"""A bucketized representation of likelihood, which is intended
     to give clients highly stable results across model upgrades.
+
+    Values:
+        UNKNOWN (0):
+            Unknown likelihood.
+        VERY_UNLIKELY (1):
+            It is very unlikely that the image belongs to
+            the specified vertical.
+        UNLIKELY (2):
+            It is unlikely that the image belongs to the
+            specified vertical.
+        POSSIBLE (3):
+            It is possible that the image belongs to the
+            specified vertical.
+        LIKELY (4):
+            It is likely that the image belongs to the
+            specified vertical.
+        VERY_LIKELY (5):
+            It is very likely that the image belongs to
+            the specified vertical.
     """
     UNKNOWN = 0
     VERY_UNLIKELY = 1
@@ -100,7 +119,39 @@ class Feature(proto.Message):
     """
 
     class Type(proto.Enum):
-        r"""Type of Google Cloud Vision API feature to be extracted."""
+        r"""Type of Google Cloud Vision API feature to be extracted.
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Unspecified feature type.
+            FACE_DETECTION (1):
+                Run face detection.
+            LANDMARK_DETECTION (2):
+                Run landmark detection.
+            LOGO_DETECTION (3):
+                Run logo detection.
+            LABEL_DETECTION (4):
+                Run label detection.
+            TEXT_DETECTION (5):
+                Run text detection / optical character recognition (OCR).
+                Text detection is optimized for areas of text within a
+                larger image; if the image is a document, use
+                ``DOCUMENT_TEXT_DETECTION`` instead.
+            DOCUMENT_TEXT_DETECTION (11):
+                Run dense text document OCR. Takes precedence when both
+                ``DOCUMENT_TEXT_DETECTION`` and ``TEXT_DETECTION`` are
+                present.
+            SAFE_SEARCH_DETECTION (6):
+                Run Safe Search to detect potentially unsafe
+                or undesirable content.
+            IMAGE_PROPERTIES (7):
+                Compute a set of image properties, such as
+                the image's dominant colors.
+            CROP_HINTS (9):
+                Run crop hints.
+            WEB_DETECTION (10):
+                Run web detection.
+        """
         TYPE_UNSPECIFIED = 0
         FACE_DETECTION = 1
         LANDMARK_DETECTION = 2
@@ -271,6 +322,79 @@ class Type(proto.Enum):
             vantage of the viewer of the image without considering mirror
             projections typical of photos. So, ``LEFT_EYE``, typically, is the
             person's right eye.
+
+            Values:
+                UNKNOWN_LANDMARK (0):
+                    Unknown face landmark detected. Should not be
+                    filled.
+                LEFT_EYE (1):
+                    Left eye.
+                RIGHT_EYE (2):
+                    Right eye.
+                LEFT_OF_LEFT_EYEBROW (3):
+                    Left of left eyebrow.
+                RIGHT_OF_LEFT_EYEBROW (4):
+                    Right of left eyebrow.
+                LEFT_OF_RIGHT_EYEBROW (5):
+                    Left of right eyebrow.
+                RIGHT_OF_RIGHT_EYEBROW (6):
+                    Right of right eyebrow.
+                MIDPOINT_BETWEEN_EYES (7):
+                    Midpoint between eyes.
+                NOSE_TIP (8):
+                    Nose tip.
+                UPPER_LIP (9):
+                    Upper lip.
+                LOWER_LIP (10):
+                    Lower lip.
+                MOUTH_LEFT (11):
+                    Mouth left.
+                MOUTH_RIGHT (12):
+                    Mouth right.
+                MOUTH_CENTER (13):
+                    Mouth center.
+                NOSE_BOTTOM_RIGHT (14):
+                    Nose, bottom right.
+                NOSE_BOTTOM_LEFT (15):
+                    Nose, bottom left.
+                NOSE_BOTTOM_CENTER (16):
+                    Nose, bottom center.
+                LEFT_EYE_TOP_BOUNDARY (17):
+                    Left eye, top boundary.
+                LEFT_EYE_RIGHT_CORNER (18):
+                    Left eye, right corner.
+                LEFT_EYE_BOTTOM_BOUNDARY (19):
+                    Left eye, bottom boundary.
+                LEFT_EYE_LEFT_CORNER (20):
+                    Left eye, left corner.
+                RIGHT_EYE_TOP_BOUNDARY (21):
+                    Right eye, top boundary.
+                RIGHT_EYE_RIGHT_CORNER (22):
+                    Right eye, right corner.
+                RIGHT_EYE_BOTTOM_BOUNDARY (23):
+                    Right eye, bottom boundary.
+                RIGHT_EYE_LEFT_CORNER (24):
+                    Right eye, left corner.
+                LEFT_EYEBROW_UPPER_MIDPOINT (25):
+                    Left eyebrow, upper midpoint.
+                RIGHT_EYEBROW_UPPER_MIDPOINT (26):
+                    Right eyebrow, upper midpoint.
+                LEFT_EAR_TRAGION (27):
+                    Left ear tragion.
+                RIGHT_EAR_TRAGION (28):
+                    Right ear tragion.
+                LEFT_EYE_PUPIL (29):
+                    Left eye pupil.
+                RIGHT_EYE_PUPIL (30):
+                    Right eye pupil.
+                FOREHEAD_GLABELLA (31):
+                    Forehead glabella.
+                CHIN_GNATHION (32):
+                    Chin gnathion.
+                CHIN_LEFT_GONION (33):
+                    Chin left gonion.
+                CHIN_RIGHT_GONION (34):
+                    Chin right gonion.
             """
             UNKNOWN_LANDMARK = 0
             LEFT_EYE = 1
@@ -1243,7 +1367,20 @@ class OperationMetadata(proto.Message):
     """
 
     class State(proto.Enum):
-        r"""Batch operation states."""
+        r"""Batch operation states.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            CREATED (1):
+                Request is received.
+            RUNNING (2):
+                Request is actively being processed.
+            DONE (3):
+                The batch processing is done.
+            CANCELLED (4):
+                The batch processing was cancelled.
+        """
         STATE_UNSPECIFIED = 0
         CREATED = 1
         RUNNING = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/text_annotation.py b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/text_annotation.py
index 9ab0d9678073..71c2bab1f800 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/text_annotation.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/types/text_annotation.py
@@ -82,7 +82,24 @@ class DetectedBreak(proto.Message):
         """
 
         class BreakType(proto.Enum):
-            r"""Enum to denote the type of break found. New line, space etc."""
+            r"""Enum to denote the type of break found. New line, space etc.
+
+            Values:
+                UNKNOWN (0):
+                    Unknown break label type.
+                SPACE (1):
+                    Regular space.
+                SURE_SPACE (2):
+                    Sure space (very wide).
+                EOL_SURE_SPACE (3):
+                    Line-wrapping break.
+                HYPHEN (4):
+                    End-line hyphen that is not present in text; does not
+                    co-occur with ``SPACE``, ``LEADER_SPACE``, or
+                    ``LINE_BREAK``.
+                LINE_BREAK (5):
+                    Line break that ends a paragraph.
+            """
             UNKNOWN = 0
             SPACE = 1
             SURE_SPACE = 2
@@ -221,7 +238,22 @@ class Block(proto.Message):
     """
 
     class BlockType(proto.Enum):
-        r"""Type of a block (text, image etc) as identified by OCR."""
+        r"""Type of a block (text, image etc) as identified by OCR.
+
+        Values:
+            UNKNOWN (0):
+                Unknown block type.
+            TEXT (1):
+                Regular text block.
+            TABLE (2):
+                Table block.
+            PICTURE (3):
+                Image block.
+            RULER (4):
+                Horizontal/vertical line box.
+            BARCODE (5):
+                Barcode block.
+        """
         UNKNOWN = 0
         TEXT = 1
         TABLE = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/image_annotator/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/image_annotator/client.py
index 6d28b9742125..8dc71ced2101 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/image_annotator/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/image_annotator/client.py
@@ -697,7 +697,7 @@ def sample_async_batch_annotate_files():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ImageAnnotatorClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/product_search/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/product_search/client.py
index 820ac2487067..e05cf1e2b41e 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/product_search/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/services/product_search/client.py
@@ -2730,7 +2730,7 @@ def sample_import_product_sets():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ProductSearchClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/image_annotator.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/image_annotator.py
index e3fec2ac7ad9..7bf9ec32b2e2 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/image_annotator.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/image_annotator.py
@@ -72,6 +72,25 @@
 class Likelihood(proto.Enum):
     r"""A bucketized representation of likelihood, which is intended
     to give clients highly stable results across model upgrades.
+
+    Values:
+        UNKNOWN (0):
+            Unknown likelihood.
+        VERY_UNLIKELY (1):
+            It is very unlikely that the image belongs to
+            the specified vertical.
+        UNLIKELY (2):
+            It is unlikely that the image belongs to the
+            specified vertical.
+        POSSIBLE (3):
+            It is possible that the image belongs to the
+            specified vertical.
+        LIKELY (4):
+            It is likely that the image belongs to the
+            specified vertical.
+        VERY_LIKELY (5):
+            It is very likely that the image belongs to
+            the specified vertical.
     """
     UNKNOWN = 0
     VERY_UNLIKELY = 1
@@ -102,7 +121,43 @@ class Feature(proto.Message):
     """
 
     class Type(proto.Enum):
-        r"""Type of Google Cloud Vision API feature to be extracted."""
+        r"""Type of Google Cloud Vision API feature to be extracted.
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Unspecified feature type.
+            FACE_DETECTION (1):
+                Run face detection.
+            LANDMARK_DETECTION (2):
+                Run landmark detection.
+            LOGO_DETECTION (3):
+                Run logo detection.
+            LABEL_DETECTION (4):
+                Run label detection.
+            TEXT_DETECTION (5):
+                Run text detection / optical character recognition (OCR).
+                Text detection is optimized for areas of text within a
+                larger image; if the image is a document, use
+                ``DOCUMENT_TEXT_DETECTION`` instead.
+            DOCUMENT_TEXT_DETECTION (11):
+                Run dense text document OCR. Takes precedence when both
+                ``DOCUMENT_TEXT_DETECTION`` and ``TEXT_DETECTION`` are
+                present.
+            SAFE_SEARCH_DETECTION (6):
+                Run Safe Search to detect potentially unsafe
+                or undesirable content.
+            IMAGE_PROPERTIES (7):
+                Compute a set of image properties, such as
+                the image's dominant colors.
+            CROP_HINTS (9):
+                Run crop hints.
+            WEB_DETECTION (10):
+                Run web detection.
+            PRODUCT_SEARCH (12):
+                Run Product Search.
+            OBJECT_LOCALIZATION (19):
+                Run localizer for object detection.
+        """
         TYPE_UNSPECIFIED = 0
         FACE_DETECTION = 1
         LANDMARK_DETECTION = 2
@@ -275,6 +330,79 @@ class Type(proto.Enum):
             vantage of the viewer of the image without considering mirror
             projections typical of photos. So, ``LEFT_EYE``, typically, is the
             person's right eye.
+
+            Values:
+                UNKNOWN_LANDMARK (0):
+                    Unknown face landmark detected. Should not be
+                    filled.
+                LEFT_EYE (1):
+                    Left eye.
+                RIGHT_EYE (2):
+                    Right eye.
+                LEFT_OF_LEFT_EYEBROW (3):
+                    Left of left eyebrow.
+                RIGHT_OF_LEFT_EYEBROW (4):
+                    Right of left eyebrow.
+                LEFT_OF_RIGHT_EYEBROW (5):
+                    Left of right eyebrow.
+                RIGHT_OF_RIGHT_EYEBROW (6):
+                    Right of right eyebrow.
+                MIDPOINT_BETWEEN_EYES (7):
+                    Midpoint between eyes.
+                NOSE_TIP (8):
+                    Nose tip.
+                UPPER_LIP (9):
+                    Upper lip.
+                LOWER_LIP (10):
+                    Lower lip.
+                MOUTH_LEFT (11):
+                    Mouth left.
+                MOUTH_RIGHT (12):
+                    Mouth right.
+                MOUTH_CENTER (13):
+                    Mouth center.
+                NOSE_BOTTOM_RIGHT (14):
+                    Nose, bottom right.
+                NOSE_BOTTOM_LEFT (15):
+                    Nose, bottom left.
+                NOSE_BOTTOM_CENTER (16):
+                    Nose, bottom center.
+                LEFT_EYE_TOP_BOUNDARY (17):
+                    Left eye, top boundary.
+                LEFT_EYE_RIGHT_CORNER (18):
+                    Left eye, right corner.
+                LEFT_EYE_BOTTOM_BOUNDARY (19):
+                    Left eye, bottom boundary.
+                LEFT_EYE_LEFT_CORNER (20):
+                    Left eye, left corner.
+                RIGHT_EYE_TOP_BOUNDARY (21):
+                    Right eye, top boundary.
+                RIGHT_EYE_RIGHT_CORNER (22):
+                    Right eye, right corner.
+                RIGHT_EYE_BOTTOM_BOUNDARY (23):
+                    Right eye, bottom boundary.
+                RIGHT_EYE_LEFT_CORNER (24):
+                    Right eye, left corner.
+                LEFT_EYEBROW_UPPER_MIDPOINT (25):
+                    Left eyebrow, upper midpoint.
+                RIGHT_EYEBROW_UPPER_MIDPOINT (26):
+                    Right eyebrow, upper midpoint.
+                LEFT_EAR_TRAGION (27):
+                    Left ear tragion.
+                RIGHT_EAR_TRAGION (28):
+                    Right ear tragion.
+                LEFT_EYE_PUPIL (29):
+                    Left eye pupil.
+                RIGHT_EYE_PUPIL (30):
+                    Right eye pupil.
+                FOREHEAD_GLABELLA (31):
+                    Forehead glabella.
+                CHIN_GNATHION (32):
+                    Chin gnathion.
+                CHIN_LEFT_GONION (33):
+                    Chin left gonion.
+                CHIN_RIGHT_GONION (34):
+                    Chin right gonion.
             """
             UNKNOWN_LANDMARK = 0
             LEFT_EYE = 1
@@ -1316,7 +1444,20 @@ class OperationMetadata(proto.Message):
     """
 
     class State(proto.Enum):
-        r"""Batch operation states."""
+        r"""Batch operation states.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            CREATED (1):
+                Request is received.
+            RUNNING (2):
+                Request is actively being processed.
+            DONE (3):
+                The batch processing is done.
+            CANCELLED (4):
+                The batch processing was cancelled.
+        """
         STATE_UNSPECIFIED = 0
         CREATED = 1
         RUNNING = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/product_search_service.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/product_search_service.py
index 9590d9f925f2..32635f617c0a 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/product_search_service.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/product_search_service.py
@@ -978,6 +978,24 @@ class BatchOperationMetadata(proto.Message):
     class State(proto.Enum):
         r"""Enumerates the possible states that the batch request can be
         in.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            PROCESSING (1):
+                Request is actively being processed.
+            SUCCESSFUL (2):
+                The request is done and at least one item has
+                been successfully processed.
+            FAILED (3):
+                The request is done and no item has been
+                successfully processed.
+            CANCELLED (4):
+                The request is done after the
+                longrunning.Operations.CancelOperation has been
+                called by the user.  Any records that were
+                processed before the cancel command are output
+                as specified in the request.
         """
         STATE_UNSPECIFIED = 0
         PROCESSING = 1
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/text_annotation.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/text_annotation.py
index aac0c22ac472..689548dc5c9d 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/text_annotation.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/types/text_annotation.py
@@ -82,7 +82,24 @@ class DetectedBreak(proto.Message):
         """
 
         class BreakType(proto.Enum):
-            r"""Enum to denote the type of break found. New line, space etc."""
+            r"""Enum to denote the type of break found. New line, space etc.
+
+            Values:
+                UNKNOWN (0):
+                    Unknown break label type.
+                SPACE (1):
+                    Regular space.
+                SURE_SPACE (2):
+                    Sure space (very wide).
+                EOL_SURE_SPACE (3):
+                    Line-wrapping break.
+                HYPHEN (4):
+                    End-line hyphen that is not present in text; does not
+                    co-occur with ``SPACE``, ``LEADER_SPACE``, or
+                    ``LINE_BREAK``.
+                LINE_BREAK (5):
+                    Line break that ends a paragraph.
+            """
             UNKNOWN = 0
             SPACE = 1
             SURE_SPACE = 2
@@ -221,7 +238,22 @@ class Block(proto.Message):
     """
 
     class BlockType(proto.Enum):
-        r"""Type of a block (text, image etc) as identified by OCR."""
+        r"""Type of a block (text, image etc) as identified by OCR.
+
+        Values:
+            UNKNOWN (0):
+                Unknown block type.
+            TEXT (1):
+                Regular text block.
+            TABLE (2):
+                Table block.
+            PICTURE (3):
+                Image block.
+            RULER (4):
+                Horizontal/vertical line box.
+            BARCODE (5):
+                Barcode block.
+        """
         UNKNOWN = 0
         TEXT = 1
         TABLE = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/image_annotator/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/image_annotator/client.py
index 1776dfa45c12..abcc8a1dfa16 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/image_annotator/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/image_annotator/client.py
@@ -944,7 +944,7 @@ def sample_async_batch_annotate_files():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ImageAnnotatorClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/product_search/client.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/product_search/client.py
index d1f2252218db..e94709ae3b91 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/product_search/client.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/services/product_search/client.py
@@ -2867,7 +2867,7 @@ def sample_purge_products():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ProductSearchClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/image_annotator.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/image_annotator.py
index 5b5a557adf22..fb61a8467de6 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/image_annotator.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/image_annotator.py
@@ -78,6 +78,20 @@
 class Likelihood(proto.Enum):
     r"""A bucketized representation of likelihood, which is intended
     to give clients highly stable results across model upgrades.
+
+    Values:
+        UNKNOWN (0):
+            Unknown likelihood.
+        VERY_UNLIKELY (1):
+            It is very unlikely.
+        UNLIKELY (2):
+            It is unlikely.
+        POSSIBLE (3):
+            It is possible.
+        LIKELY (4):
+            It is likely.
+        VERY_LIKELY (5):
+            It is very likely.
     """
     UNKNOWN = 0
     VERY_UNLIKELY = 1
@@ -108,7 +122,43 @@ class Feature(proto.Message):
     """
 
     class Type(proto.Enum):
-        r"""Type of Google Cloud Vision API feature to be extracted."""
+        r"""Type of Google Cloud Vision API feature to be extracted.
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Unspecified feature type.
+            FACE_DETECTION (1):
+                Run face detection.
+            LANDMARK_DETECTION (2):
+                Run landmark detection.
+            LOGO_DETECTION (3):
+                Run logo detection.
+            LABEL_DETECTION (4):
+                Run label detection.
+            TEXT_DETECTION (5):
+                Run text detection / optical character recognition (OCR).
+                Text detection is optimized for areas of text within a
+                larger image; if the image is a document, use
+                ``DOCUMENT_TEXT_DETECTION`` instead.
+            DOCUMENT_TEXT_DETECTION (11):
+                Run dense text document OCR. Takes precedence when both
+                ``DOCUMENT_TEXT_DETECTION`` and ``TEXT_DETECTION`` are
+                present.
+            SAFE_SEARCH_DETECTION (6):
+                Run Safe Search to detect potentially unsafe
+                or undesirable content.
+            IMAGE_PROPERTIES (7):
+                Compute a set of image properties, such as
+                the image's dominant colors.
+            CROP_HINTS (9):
+                Run crop hints.
+            WEB_DETECTION (10):
+                Run web detection.
+            PRODUCT_SEARCH (12):
+                Run Product Search.
+            OBJECT_LOCALIZATION (19):
+                Run localizer for object detection.
+        """
         TYPE_UNSPECIFIED = 0
         FACE_DETECTION = 1
         LANDMARK_DETECTION = 2
@@ -289,6 +339,79 @@ class Type(proto.Enum):
             vantage of the viewer of the image without considering mirror
             projections typical of photos. So, ``LEFT_EYE``, typically, is the
             person's right eye.
+
+            Values:
+                UNKNOWN_LANDMARK (0):
+                    Unknown face landmark detected. Should not be
+                    filled.
+                LEFT_EYE (1):
+                    Left eye.
+                RIGHT_EYE (2):
+                    Right eye.
+                LEFT_OF_LEFT_EYEBROW (3):
+                    Left of left eyebrow.
+                RIGHT_OF_LEFT_EYEBROW (4):
+                    Right of left eyebrow.
+                LEFT_OF_RIGHT_EYEBROW (5):
+                    Left of right eyebrow.
+                RIGHT_OF_RIGHT_EYEBROW (6):
+                    Right of right eyebrow.
+                MIDPOINT_BETWEEN_EYES (7):
+                    Midpoint between eyes.
+                NOSE_TIP (8):
+                    Nose tip.
+                UPPER_LIP (9):
+                    Upper lip.
+                LOWER_LIP (10):
+                    Lower lip.
+                MOUTH_LEFT (11):
+                    Mouth left.
+                MOUTH_RIGHT (12):
+                    Mouth right.
+                MOUTH_CENTER (13):
+                    Mouth center.
+                NOSE_BOTTOM_RIGHT (14):
+                    Nose, bottom right.
+                NOSE_BOTTOM_LEFT (15):
+                    Nose, bottom left.
+                NOSE_BOTTOM_CENTER (16):
+                    Nose, bottom center.
+                LEFT_EYE_TOP_BOUNDARY (17):
+                    Left eye, top boundary.
+                LEFT_EYE_RIGHT_CORNER (18):
+                    Left eye, right corner.
+                LEFT_EYE_BOTTOM_BOUNDARY (19):
+                    Left eye, bottom boundary.
+                LEFT_EYE_LEFT_CORNER (20):
+                    Left eye, left corner.
+                RIGHT_EYE_TOP_BOUNDARY (21):
+                    Right eye, top boundary.
+                RIGHT_EYE_RIGHT_CORNER (22):
+                    Right eye, right corner.
+                RIGHT_EYE_BOTTOM_BOUNDARY (23):
+                    Right eye, bottom boundary.
+                RIGHT_EYE_LEFT_CORNER (24):
+                    Right eye, left corner.
+                LEFT_EYEBROW_UPPER_MIDPOINT (25):
+                    Left eyebrow, upper midpoint.
+                RIGHT_EYEBROW_UPPER_MIDPOINT (26):
+                    Right eyebrow, upper midpoint.
+                LEFT_EAR_TRAGION (27):
+                    Left ear tragion.
+                RIGHT_EAR_TRAGION (28):
+                    Right ear tragion.
+                LEFT_EYE_PUPIL (29):
+                    Left eye pupil.
+                RIGHT_EYE_PUPIL (30):
+                    Right eye pupil.
+                FOREHEAD_GLABELLA (31):
+                    Forehead glabella.
+                CHIN_GNATHION (32):
+                    Chin gnathion.
+                CHIN_LEFT_GONION (33):
+                    Chin left gonion.
+                CHIN_RIGHT_GONION (34):
+                    Chin right gonion.
             """
             UNKNOWN_LANDMARK = 0
             LEFT_EYE = 1
@@ -1509,7 +1632,20 @@ class OperationMetadata(proto.Message):
     """
 
     class State(proto.Enum):
-        r"""Batch operation states."""
+        r"""Batch operation states.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            CREATED (1):
+                Request is received.
+            RUNNING (2):
+                Request is actively being processed.
+            DONE (3):
+                The batch processing is done.
+            CANCELLED (4):
+                The batch processing was cancelled.
+        """
         STATE_UNSPECIFIED = 0
         CREATED = 1
         RUNNING = 2
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/product_search_service.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/product_search_service.py
index 92663457044c..90f878141d49 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/product_search_service.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/product_search_service.py
@@ -999,6 +999,24 @@ class BatchOperationMetadata(proto.Message):
     class State(proto.Enum):
         r"""Enumerates the possible states that the batch request can be
         in.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Invalid.
+            PROCESSING (1):
+                Request is actively being processed.
+            SUCCESSFUL (2):
+                The request is done and at least one item has
+                been successfully processed.
+            FAILED (3):
+                The request is done and no item has been
+                successfully processed.
+            CANCELLED (4):
+                The request is done after the
+                longrunning.Operations.CancelOperation has been
+                called by the user.  Any records that were
+                processed before the cancel command are output
+                as specified in the request.
         """
         STATE_UNSPECIFIED = 0
         PROCESSING = 1
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/text_annotation.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/text_annotation.py
index 11c932704352..ccf90ea8cfa7 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/text_annotation.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/types/text_annotation.py
@@ -82,7 +82,24 @@ class DetectedBreak(proto.Message):
         """
 
         class BreakType(proto.Enum):
-            r"""Enum to denote the type of break found. New line, space etc."""
+            r"""Enum to denote the type of break found. New line, space etc.
+
+            Values:
+                UNKNOWN (0):
+                    Unknown break label type.
+                SPACE (1):
+                    Regular space.
+                SURE_SPACE (2):
+                    Sure space (very wide).
+                EOL_SURE_SPACE (3):
+                    Line-wrapping break.
+                HYPHEN (4):
+                    End-line hyphen that is not present in text; does not
+                    co-occur with ``SPACE``, ``LEADER_SPACE``, or
+                    ``LINE_BREAK``.
+                LINE_BREAK (5):
+                    Line break that ends a paragraph.
+            """
             UNKNOWN = 0
             SPACE = 1
             SURE_SPACE = 2
@@ -221,7 +238,22 @@ class Block(proto.Message):
     """
 
     class BlockType(proto.Enum):
-        r"""Type of a block (text, image etc) as identified by OCR."""
+        r"""Type of a block (text, image etc) as identified by OCR.
+
+        Values:
+            UNKNOWN (0):
+                Unknown block type.
+            TEXT (1):
+                Regular text block.
+            TABLE (2):
+                Table block.
+            PICTURE (3):
+                Image block.
+            RULER (4):
+                Horizontal/vertical line box.
+            BARCODE (5):
+                Barcode block.
+        """
         UNKNOWN = 0
         TEXT = 1
         TABLE = 2
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
index d37e6933b762..e29e0ec20f4f 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "3.3.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
index ec4fe3035369..70f20c5e5334 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "3.3.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
index 0cd619f37c15..52e22f36f702 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "3.3.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
index 4406cd9365c3..2dae915e840f 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "3.3.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
index a9b1e5d35f57..a1201ce42817 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "3.3.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {