how do you make a cancollide body hotkey script?

basically, I never figured this out. I want my R button to turn my character and hats cancollide=false and when I click it again It turns back to cancollide= true. is there a way to do that?

In a Local Script:

player = game.Players.LocalPlayer -- Returns the player
character = player.Character or player.CharacterAdded:wait() -- Receives the character
mouse = player:GetMouse() -- Returns the player's mouse/keyboard

can_collide = true -- Setting a boolean for CanCollide

mouse.KeyDown:connect(function(key) -- KeyDown activates when a key is pressed on the keyboard
	if key == "R" then -- If the key is R
		if can_collide == true then -- If the value is true
			can_collide = false
		elseif can_collide == false then -- Vice versa
			can_collide = true
		end
		for i,v in pairs(character:GetChildren()) do -- Checking all the children of character
			if v:IsA("Part") then -- If the child is a part
				v.CanCollide = can_collide -- Set the value of CanCollide to the value we set earlier
			end
		end
	end
end)

Note: This code is untested, so please be considerate.