Sets the unique ID of a machine image.
            
 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 RunInstancesRequest WithImageId( string imageId )
 Parameters
 Parameters- imageId (String)
- Unique ID of a machine image,
 Return Value
 Return Valuethis instance