Fix dict update and line break

Author: alexisbcc

rest/taskrouter/taskchannels/instance/post/example-1/example-1.7.x.py

@@ -11,9 +11,11 @@
 
 client = Client(account_sid, auth_token)
 
-task_channel = client.taskrouter.workspaces(workspace_sid).task_channels(task_channel_sid)
+task_channel = client.taskrouter.workspaces(workspace_sid).task_channels(
+    task_channel_sid
+)
 
-task_channel.update("friendly_name", "My Channel")
+task_channel.update({"friendly_name": "My Channel"})
 
 print(task_channel.friendly_name)
 print(task_channel.unique_name)