tree ef165579766f8b096ca438db0e05c13f25ff39c5
parent 76a4b4eeb92d28c1726339ddf8da33b540932379
author caojinlan <cao.jinlan@zte.com.cn> 1466481595 +0800
committer caojinlan <cao.jinlan@zte.com.cn> 1466577348 +0800

Add available params in set metadata

set_metadata in aggregates_client has **kwargs parameter, but
no api reference link is given. so this is to add "Available params"
in its comment.

Closes-Bug: #1592314

Change-Id: I8fff5914a6e550a1fd02a1940bb0fc92180cf3a5