If set, specifies the default maximum duration of decision tasks for this workflow type. This default can be overridden when starting a
            workflow execution using the StartWorkflowExecution action or the StartChildWorkflowExecutionDecision. 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 DefaultTaskStartToCloseTimeout { get; set; }