Sets the key prefix to use when writing the image to S3 for a CreateInstanceExportTask operation.
            
 Declaration Syntax
 Declaration Syntax| C# | 
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")] public ExportToS3TaskType WithS3Prefix( string s3Prefix )
 Parameters
 Parameters- s3Prefix (String)
- Key prefix; full key will be set as S3Prefix + exportTaskId + ‘.’ +diskImageFormat.
 Return Value
 Return Valuethis instance