Determine if the trigger_type_ref is actually a trigger ref based if the value is a valid UUID4.
Determine if the trigger_type_ref is actually a trigger ref based if the
value is a valid UUID4.

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