Clean and regen docs (#401)

diff --git a/docs/dyn/ml_v1.projects.html b/docs/dyn/ml_v1.projects.html
index 0217711..c28ffdc 100644
--- a/docs/dyn/ml_v1.projects.html
+++ b/docs/dyn/ml_v1.projects.html
@@ -361,6 +361,12 @@
         # handled, all other features will continue to work unchanged.
       "contentType": "A String", # The HTTP Content-Type string representing the content type of the body.
       "data": "A String", # HTTP body binary data.
+      "extensions": [ # Application specific response metadata. Must be set in the first response
+          # for streaming APIs.
+        {
+          "a_key": "", # Properties of the object. Contains field @type with type URL.
+        },
+      ],
     },
   }
 
@@ -412,6 +418,12 @@
       # handled, all other features will continue to work unchanged.
     "contentType": "A String", # The HTTP Content-Type string representing the content type of the body.
     "data": "A String", # HTTP body binary data.
+    "extensions": [ # Application specific response metadata. Must be set in the first response
+        # for streaming APIs.
+      {
+        "a_key": "", # Properties of the object. Contains field @type with type URL.
+      },
+    ],
   }</pre>
 </div>