The key prefix used when writing the image to a single object in the bucket.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public string S3Prefix { get; set; }
 Remarks
 RemarksThis property is used when the ExportToS3TaskType instance is used as input to
            the CreateInstanceExportTask operation. The resulting S3 object key will be set as
            'S3Prefix + exportTaskId + ‘.’ +diskImageFormat'.