[Name] event [Required] false [Attribute Constraints] Must not occur with 'eventexpr'. If the type is http://www.w3.org/TR/scxml/#SCXMLEventProcessor, either this attribute or 'eventexpr' must be present. [Type] EventType.datatype [Default Value] none [Description] 
A string indicating the name of message being generated. See E Schema for details on the data type.