Defined in github.com/aws/aws-sdk-go/service/swf/api.go
Optional. The default task priority for tasks of this activity type, specified at registration. If not set, then "0" will be used as the default priority. This default can be overridden when scheduling an activity task.
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.