chore: update generated docs (#1115)

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Source-Link: https://github.com/googleapis/discovery-artifact-manager/commit/0bed8bdae25d545e796cfcdd7a9bfffff11e69da
Source-Link: https://github.com/googleapis/synthtool/commit/c2de32114ec484aa708d32012d1fa8d75232daf5
diff --git a/docs/dyn/libraryagent_v1.shelves.html b/docs/dyn/libraryagent_v1.shelves.html
index 0120862..ea82b4f 100644
--- a/docs/dyn/libraryagent_v1.shelves.html
+++ b/docs/dyn/libraryagent_v1.shelves.html
@@ -133,13 +133,13 @@
   An object of the form:
 
     { # Response message for LibraryAgent.ListShelves.
+    "nextPageToken": "A String", # A token to retrieve next page of results. Pass this value in the ListShelvesRequest.page_token field in the subsequent call to `ListShelves` method to retrieve the next page of results.
     "shelves": [ # The list of shelves.
       { # A Shelf contains a collection of books with a theme.
         "name": "A String", # Output only. The resource name of the shelf. Shelf names have the form `shelves/{shelf_id}`. The name is ignored when creating a shelf.
         "theme": "A String", # The theme of the shelf
       },
     ],
-    "nextPageToken": "A String", # A token to retrieve next page of results. Pass this value in the ListShelvesRequest.page_token field in the subsequent call to `ListShelves` method to retrieve the next page of results.
   }</pre>
 </div>