Sets the Region the Availablity Zone is in

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 AvailabilityZone WithRegionName( string regionName )

- regionName (String)
- Name of the region.

this instance