When user is using generated SDK, C# on Get request for example, user cannot find what kind of exception will be thrown if the resource cannot be found by the comments in the C# source code. The only possible way is to either read the source code a lot further or try it out to see what exception will be thrown. This is not a good experience.
I hope we can provide type of exception in the generated code comment. Similar idea with Exception section in this page: https://msdn.microsoft.com/en-us/library/z6c2z492(v=vs.110).aspx