string GetImageMetadataItem(
	string imageId,
	string key,
	string region = null,
	CloudIdentity identity = null
)

Function GetImageMetadataItem ( 
	imageId As String,
	key As String,
	Optional region As String = Nothing,
	Optional identity As CloudIdentity = Nothing
) As String

String^ GetImageMetadataItem(
	String^ imageId, 
	String^ key, 
	String^ region = nullptr, 
	CloudIdentity^ identity = nullptr
)

abstract GetImageMetadataItem : 
        imageId : string * 
        key : string * 
        ?region : string * 
        ?identity : CloudIdentity 
(* Defaults:
        let _region = defaultArg region null
        let _identity = defaultArg identity null
*)
-> string