Sets the CallerReference property and returns back this instance to chain method calls.
            
 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 InvalidationBatch WithCallerReference( string callerReference )
 Parameters
 Parameters- callerReference (String)
- A unique name that ensures the request can't be replayed.
 Return Value
 Return ValueThis instance