Update docs for 1.4.1 release
diff --git a/docs/dyn/books_v1.myconfig.html b/docs/dyn/books_v1.myconfig.html
index 1f8a702..5470202 100644
--- a/docs/dyn/books_v1.myconfig.html
+++ b/docs/dyn/books_v1.myconfig.html
@@ -88,7 +88,7 @@
 <p class="firstline">Request downloaded content access for specified volumes on the My eBooks shelf.</p>
 <p class="toc_element">
   <code><a href="#updateUserSettings">updateUserSettings(body)</a></code></p>
-<p class="firstline">Sets the settings for the user. Unspecified sub-objects will retain the existing value.</p>
+<p class="firstline">Sets the settings for the user. If a sub-object is specified, it will overwrite the existing sub-object stored in the server. Unspecified sub-objects will retain the existing value.</p>
 <h3>Method Details</h3>
 <div class="method">
     <code class="details" id="getUserSettings">getUserSettings()</code>
@@ -327,9 +327,11 @@
           "publisher": "A String", # Publisher of this volume. (In LITE projection.)
           "language": "A String", # Best language for this volume (based on content). It is the two-letter ISO 639-1 code such as 'fr', 'en', etc.
           "readingModes": "", # The reading modes available for this volume.
+          "allowAnonLogging": True or False, # Whether anonymous logging should be allowed.
           "title": "A String", # Volume title. (In LITE projection.)
           "printType": "A String", # Type of publication of this volume. Possible values are BOOK or MAGAZINE.
           "samplePageCount": 42, # Total number of sample pages as per publisher metadata.
+          "maturityRating": "A String",
           "printedPageCount": 42, # Total number of printed pages in generated pdf representation.
           "averageRating": 3.14, # The mean review rating for this volume. (min = 1.0, max = 5.0)
           "infoLink": "A String", # URL to view information about this volume on the Google Books site. (In LITE projection)
@@ -403,7 +405,7 @@
 
 <div class="method">
     <code class="details" id="updateUserSettings">updateUserSettings(body)</code>
-  <pre>Sets the settings for the user. Unspecified sub-objects will retain the existing value.
+  <pre>Sets the settings for the user. If a sub-object is specified, it will overwrite the existing sub-object stored in the server. Unspecified sub-objects will retain the existing value.
 
 Args:
   body: object, The request body. (required)