feat(paymentsresellersubscription): update the api

#### paymentsresellersubscription:v1

The following keys were added:
- resources.partners.resources.userSessions.methods.generate (Total Keys: 12)
- schemas.GoogleCloudPaymentsResellerSubscriptionV1CreateSubscriptionIntent (Total Keys: 5)
- schemas.GoogleCloudPaymentsResellerSubscriptionV1GenerateUserSessionRequest (Total Keys: 3)
- schemas.GoogleCloudPaymentsResellerSubscriptionV1GenerateUserSessionResponse (Total Keys: 3)
- schemas.GoogleCloudPaymentsResellerSubscriptionV1IntentPayload (Total Keys: 3)
- schemas.GoogleCloudPaymentsResellerSubscriptionV1UserSession (Total Keys: 7)

Author: yoshi-automation

docs/dyn/paymentsresellersubscription_v1.partners.html

@@ -89,6 +89,11 @@ <h2>Instance Methods</h2>
 </p>
 <p class="firstline">Returns the subscriptions Resource.</p>
 
+<p class="toc_element">
+  <code><a href="paymentsresellersubscription_v1.partners.userSessions.html">userSessions()</a></code>
+</p>
+<p class="firstline">Returns the userSessions Resource.</p>
+
 <p class="toc_element">
   <code><a href="#close">close()</a></code></p>
 <p class="firstline">Close httplib2 connections.</p>