function Blend.OnChange(w)assert(type(w)=="\115\116\114\105\110\103","\066\097\100 \112\114\111\112\101\114\116\121\078\097\109\101")return function(r)return RxInstanceUtils.observeProperty(r,w)end end

function Blend.OnChange(propertyName)
	assert(type(propertyName) == "string", "Bad propertyName")

	return function(instance)
		return RxInstanceUtils.observeProperty(instance, propertyName)
	end
end
