Adds elements to the BackendServerDescriptions collection

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 LoadBalancerDescription WithBackendServerDescriptions( params BackendServerDescription[] backendServerDescriptions )

- backendServerDescriptions (array<BackendServerDescription>[]()[][])
- The values to add to the BackendServerDescriptions collection

this instance