The maximum duration for this decision task. The task is considered timed out if it does not completed within this duration. 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.
             
            
Constraints:
 Declaration Syntax
 Declaration Syntax| C# | 
public string StartToCloseTimeout { get; set; }