How get Absolute size of Widgets?

Hello. I’m trying make my own plugin. For now, I stuck with widget size - I can’t get it:

local widgetSize = Widget.AbsoluteSize -- =, 0)

Can someone say me, how I can get this property from widgetInfo?

Do this

local info = -- Create your widget info
	Enum.InitialDockState.Float,  -- Dock State
	false,   -- toggle enabled 
	true,    -- sets wheater it overrides the previous window or not 
	200,     -- width 
	44, 	 -- height    
	200,     -- min width
	44       -- min height

local widget1 = plugin:CreateDockWidgetPluginGui("Your Plugin", info)

And how I can get AbsoluteSize of widget1? When I try get it, I always see,0)