TextService:GetTextSize() but a vertical version?

I thought :GetTextSize was made for vertical uses, but its for horizontal uses. I want to get the vertical version of :GetTextSize() for my custom chat system. Like how Robloxs Chat does it, it sizes itself automatically enough for the text to fit with no extra space. I tried switching sides with X and Y but it doesn't work for me.

I need help with this, heres my script:

game.ReplicatedStorage.SendMessageRequest.OnClientEvent:Connect(function(plays, argument)
    local playerName = plays.Name
    local textMessage = argument

    local clone = script.Parent.Template.TextPlayerMessageBox:Clone()

    local message = playerName .. ": " .. textMessage

    clone.Content.Text = message

    local sizeSetRaw = textService:GetTextSize(message, clone.Content.TextSize, clone.Content.Font, clone.Content.AbsoluteSize)

    print(sizeSetRaw)

    local sizeSet = UDim2.new(0, clone.Content.Size.X.Offset, 0, sizeSetRaw.X)

Please help

thx