public static void Assert(
	bool condition,
	string errorMessage = "Expression should be true, but was false"
)

Public Shared Sub Assert ( 
	condition As Boolean,
	Optional errorMessage As String = "Expression should be true, but was false"
)

public:
static void Assert(
	bool condition, 
	String^ errorMessage = L"Expression should be true, but was false"
)

static member Assert : 
        condition : bool * 
        ?errorMessage : string 
(* Defaults:
        let _errorMessage = defaultArg errorMessage "Expression should be true, but was false"
*)
-> unit