How can I work a debounce into this script inorder to prevent spam?

I need a Debounce in this script to prevent it from being spammed.

I assume the Debounce needs to be placed within the part unlocked by the return, but I haven't been able to do it.

Putting it outside like normal makes the script stop functioning. Same as inside.

You can spam it easily, an infinitely.

With any debounce I have added, it's caused the script to stop working entirely. EDIT: IT IS SUPPOSED TO ACTIVATE A LEFTWARD DASHING MOTION ON DOUBLE TAP

work = false
tap = false
locplay = game.Players.LocalPlayer
human = locplay.Character.Humanoid
game:GetService("UserInputService").InputBegan:connect(function(input1)
        if input1.KeyCode == Enum.KeyCode.A then
            if tap then
                print("blah")
            local anim = Instance.new("Animation",human)
                anim.AnimationId = "https://www.roblox.com/DashLEFT-item?id=454485046"
            local animtrack = human:LoadAnimation(anim)
                animtrack:Play()
                for i = 0,-2.5,-.5 do
                    wait(.25)
                local Left = human.Parent.Torso.CFrame * CFrame.new(i,0,0)
                    human.Parent.Torso.CFrame = Left
                end
                animtrack:Stop()
            return
            end
            tap = true
            wait(.4)
            tap = false
        else
    end
end)