[Name] type [Required] false [Attribute Constraints] Must not occur with 'typeexpr' [Default Value] none [Description] The URI that identifies the transport mechanism for the message. See 6.2.5 The Type of Send for details. [Type] 
URI
E v e n t T y p e . d a t a t y p e
V a l u e e x p r e s s i o n
U R I
v a l u e e x p r e s s i o n
x m l : I D
L o c a t i o n e x p r e s s i o n
D u r a t i o n . d a t a t y p e
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