UserCredential GetUserCredential(
	string userId,
	string credentialKey,
	CloudIdentity identity = null
)

Function GetUserCredential ( 
	userId As String,
	credentialKey As String,
	Optional identity As CloudIdentity = Nothing
) As UserCredential

UserCredential^ GetUserCredential(
	String^ userId, 
	String^ credentialKey, 
	CloudIdentity^ identity = nullptr
)

abstract GetUserCredential : 
        userId : string * 
        credentialKey : string * 
        ?identity : CloudIdentity 
(* Defaults:
        let _identity = defaultArg identity null
*)
-> UserCredential