AWS SDK for .NET Documentation
ScheduleToCloseTimeout Property
AmazonAmazon.SimpleWorkflow.ModelScheduleActivityTaskDecisionAttributesScheduleToCloseTimeout Did this page help you?   Yes   No    Tell us about it...
The maximum duration for this activity task. 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-close 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-close timeout was specified at registration time then a fault will be returned.

Constraints:

Length
0 - 8

Declaration Syntax
C#
public string ScheduleToCloseTimeout { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)