Clean and regen docs (#401)

diff --git a/docs/dyn/dataflow_v1b3.projects.jobs.messages.html b/docs/dyn/dataflow_v1b3.projects.jobs.messages.html
index 3861e84..8095fc8 100644
--- a/docs/dyn/dataflow_v1b3.projects.jobs.messages.html
+++ b/docs/dyn/dataflow_v1b3.projects.jobs.messages.html
@@ -110,12 +110,36 @@
 
     { # Response to a request to list job messages.
     "nextPageToken": "A String", # The token to obtain the next page of results if there are more.
+    "autoscalingEvents": [ # Autoscaling events in ascending timestamp order.
+      { # A structured message reporting an autoscaling decision made by the Dataflow
+          # service.
+        "eventType": "A String", # The type of autoscaling event to report.
+        "currentNumWorkers": "A String", # The current number of workers the job has.
+        "description": { # A rich message format, including a human readable string, a key for # A message describing why the system decided to adjust the current
+            # number of workers, why it failed, or why the system decided to
+            # not make any changes to the number of workers.
+            # identifying the message, and structured data associated with the message for
+            # programmatic consumption.
+          "messageKey": "A String", # Idenfier for this message type.  Used by external systems to
+              # internationalize or personalize message.
+          "messageText": "A String", # Human-readable version of message.
+          "parameters": [ # The structured data associated with this message.
+            { # Structured data associated with this message.
+              "value": "", # Value for this parameter.
+              "key": "A String", # Key or name for this parameter.
+            },
+          ],
+        },
+        "targetNumWorkers": "A String", # The target number of workers the worker pool wants to resize to use.
+        "time": "A String", # The time this event was emitted to indicate a new target or current
+            # num_workers value.
+      },
+    ],
     "jobMessages": [ # Messages in ascending timestamp order.
       { # A particular message pertaining to a Dataflow job.
         "messageImportance": "A String", # Importance level of the message.
         "messageText": "A String", # The text of the message.
-        "id": "A String", # Identifies the message.  This is automatically generated by the
-            # service; the caller should treat it as an opaque string.
+        "id": "A String", # Deprecated.
         "time": "A String", # The timestamp of the message.
       },
     ],