How could i send others notificaitions using the StarterGui:SetCore("SendNotifications")?

local RankChange = game.ReplicatedStorage.AdminPanelEvents.RankEvents.RankChange
local RankList = {"Default","Fan","VIP","YouTuber","Builder","Mod","Moderator","Admin","Owner"}
local player = game.Players.LocalPlayer
local PlayerName = script.Parent.Parent.PlayerName
local RankName = script.Parent.Parent.RankName
local db = false

script.Parent.MouseButton1Click:Connect(function()
    if db == false then
        db = true
        if game.Players:FindFirstChild(PlayerName.Text) then
            for i, v in pairs(RankList) do
                if RankName.Text == v then
                    print(player.Name.." has changed "..PlayerName.Text.."'s rank to "..RankName.Text)
                    RankChange:FireServer(PlayerName.Text, RankName.Text)
                    wait(0.5)
                    game.StarterGui:SetCore("SendNotification",{
                        Title = "Rank Change";
                        Text = "You changed "..PlayerName.Text.."'s rank to "..RankName.Text.."!"
                    })
                    db = false
                end
            end
        end
    end
end)