Raise ValueErrors for invalid parameter specifications.
Raise ValueErrors for invalid parameter specifications.

StackStorm/st2,StackStorm/st2,StackStorm/st2,nzlosh/st2,StackStorm/st2,Plexxi/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,nzlosh/st2,Plexxi/st2,nzlosh/st2