[Name] hints [Required] false [Default Value] none [Valid Values] A value expression. [Description] The data returned contains information which may be used by the implementing platform to optimize message transmission. The meaning of these hints is platform-specific. [Type] 
Value expression
V a l u e e x p r e s s i o n
N M T O K E N
L o c a t i o n e x p r e s s i o n
L i s t o f l o c a t i o n e x p r e s s i o n s