Update docs.
diff --git a/docs/dyn/identitytoolkit_v3.relyingparty.html b/docs/dyn/identitytoolkit_v3.relyingparty.html
index 24429ca..339a9a5 100644
--- a/docs/dyn/identitytoolkit_v3.relyingparty.html
+++ b/docs/dyn/identitytoolkit_v3.relyingparty.html
@@ -133,11 +133,9 @@
 
     { # Response of creating the IDP authentication URL.
     "kind": "identitytoolkit#CreateAuthUriResponse", # The fixed string identitytoolkit#CreateAuthUriResponse".
-    "providers": [ # Existing IDP's for the user.
-      "A String",
-    ],
     "registered": True or False, # Whether the user is registered if the identifier is an email.
     "providerId": "A String", # The provider ID of the auth URI.
+    "forExistingProvider": True or False, # True if the authUri is for user's existing provider.
     "authUri": "A String", # The URI used by the IDP to authenticate the user.
   }</pre>
 </div>
@@ -375,7 +373,7 @@
     The object takes the form of:
 
 { # Request to upload user account in batch.
-    "hashAlgorithm": "A String",
+    "hashAlgorithm": "A String", # The password hash algorithm.
     "users": [ # The account info to be stored.
       { # Template for an individual account info.
         "displayName": "A String", # The name of the user.
@@ -397,10 +395,10 @@
         "email": "A String", # The email of the user.
       },
     ],
-    "signerKey": "A String",
-    "memoryCost": 42,
-    "saltSeparator": "A String",
-    "rounds": 42,
+    "signerKey": "A String", # The key for to hash the password.
+    "memoryCost": 42, # Memory cost for hash calculation. Used by scrypt similar algorithms.
+    "saltSeparator": "A String", # The salt separator.
+    "rounds": 42, # Rounds for hash calculation. Used by scrypt and similar algorithms.
   }