If set, specifies the maximum duration the activity task can wait to be assigned to a worker. This overrides the default schedule-to-start
            timeout specified when registering the activity type using 
RegisterActivityType. The valid values are integers greater than or equal
            to 
0. An integer value can be used to specify the duration in seconds while 
NONE can be used to specify unlimited duration.
            
|  Note: | 
|---|
| A schedule-to-start timeout for this activity task must be specified either as a default for the activity type or through this field.
            If neither this field is set nor a default schedule-to-start timeout was specified at registration time then a fault will be
            returned. | 
Constraints:
- Length
- 0 - 8

 Declaration Syntax
public string ScheduleToStartTimeout { get; set; }Assembly: 
AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)