[JsonPropertyAttribute("OS-EXT-IMG-SIZE:size")]
public Nullable<long> Size { get; set; }

<JsonPropertyAttribute("OS-EXT-IMG-SIZE:size")>
Public Property Size As Nullable(Of Long)
	Get
	Set

public:
[JsonPropertyAttribute(L"OS-EXT-IMG-SIZE:size")]
property Nullable<long long> Size {
	Nullable<long long> get ();
	void set (Nullable<long long> value);
}

[<JsonPropertyAttribute("OS-EXT-IMG-SIZE:size")>]
member Size : Nullable<int64> with get, set