Checks if DescribeExportTasksResult property is set
            
 Declaration Syntax
 Declaration Syntax| C# | 
public bool IsSetDescribeExportTasksResult()
 Return Value
 Return Valuetrue if DescribeExportTasksResult property is set
 Declaration Syntax
 Declaration Syntax| C# | 
public bool IsSetDescribeExportTasksResult()
 Return Value
 Return Value