fix param

@@ -338,7 +338,7 @@ info_args = {
 }
 }
 
 
 auto_approve_details = {
 auto_approve_details = {
-    'aaType': fields.Str(required=True, validate=validate.Length(max=64)),
+    'aaType': fields.Str(required=False, validate=validate.Length(max=64)),
     'policyComments': fields.Str(required=False),
     'policyComments': fields.Str(required=False),
 }
 }