[ContentSerializerAttribute(Optional = true)]
public T DefaultValue { get; set; }

<ContentSerializerAttribute(Optional := true)>
Public Property DefaultValue As T
	Get
	Set

public:
[ContentSerializerAttribute(Optional = true)]
property T DefaultValue {
	T get ();
	void set (T value);
}

[<ContentSerializerAttribute(Optional = true)>]
member DefaultValue : 'T with get, set