[JsonPropertyAttribute("admin_state_up")]
public Nullable<bool> IsUp { get; set; }

<JsonPropertyAttribute("admin_state_up")>
Public Property IsUp As Nullable(Of Boolean)
	Get
	Set

public:
[JsonPropertyAttribute(L"admin_state_up")]
property Nullable<bool> IsUp {
	Nullable<bool> get ();
	void set (Nullable<bool> value);
}

[<JsonPropertyAttribute("admin_state_up")>]
member IsUp : Nullable<bool> with get, set