Defined in github.com/aws/aws-sdk-go/service/swf/api.go
Optional. The priority to assign to the scheduled activity task. If set, this will override any default priority value that was assigned when the activity type was registered.
Valid values are integers that range from Java's Integer.MIN_VALUE (-2147483648) to Integer.MAX_VALUE (2147483647). Higher numbers indicate higher priority.
For more information about setting task priority, see Setting Task Priority (http://docs.aws.amazon.com/amazonswf/latest/developerguide/programming-priority.html) in the Amazon Simple Workflow Developer Guide.