Some questions about livy

Dear Livy team,
 
I'm using livy to build a project and having some questions:
 
1: Is there a more detailed documentation describing the possible values of the `statement` object in the REST API? For example, (1) the possible values of `status` in `output` (2) what is the full content of `output` if the `status` is `ok` or `error`?
 
2: Sometimes I just want to have a server to run snippets of python code and get the result, so is there a way that letting the livy server just run code locally instead of connecting to the spark cluster when creating (so that I can same some time and resource) ?
 
3. I found that some error message and tracebacks are elided. Is there a way to get the full log of a statement?
 
Looking forward to your reply! Thanks very much.
 
Best regrads