How can I make sure User Keyboard Input halts when a text box is in focus?

I tried using the line if script.Parent.Chat.Frame.ChatBarParentFrame.Frame.BoxFrame.Frame.ChatBar.FocusLost then but that didn't even work. What I'm trying to do is make it so that when keys are pressed and the chat or another gui is in focus, it won't run the function.

Here is the full script, for anyone who is interested.

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local hmnid = char:WaitForChild("Humanoid")

function onKeyPress(inputObject, gameProcessedEvent)
	if script.Parent.Chat.Frame.ChatBarParentFrame.Frame.BoxFrame.Frame.ChatBar.FocusLost then
		if inputObject.KeyCode == Enum.KeyCode.K then
			if hmnid.CameraOffset.x ~= 5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X + 0.5, hmnid.CameraOffset.Y, hmnid.CameraOffset.Z)
				print("CameraOffset X value increased.")
			else
				print("CameraOffset not changed.")
			end
		end
		if inputObject.KeyCode == Enum.KeyCode.H then
			if hmnid.CameraOffset.x ~= -5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X - 0.5, hmnid.CameraOffset.Y, hmnid.CameraOffset.Z)
				print("CameraOffset X value decreased.")
			else
				print("CameraOffset not changed.")
			end
		end
		if inputObject.KeyCode == Enum.KeyCode.J then
			if hmnid.CameraOffset.z ~= 5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X, hmnid.CameraOffset.Y, hmnid.CameraOffset.Z + 0.5)
				print("CameraOffset Z value increased.")
			else
				print("CameraOffset not changed.")
			end
		end
		if inputObject.KeyCode == Enum.KeyCode.U then
			if hmnid.CameraOffset.z ~= -5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X, hmnid.CameraOffset.Y, hmnid.CameraOffset.Z - 0.5)
				print("CameraOffset Z value decreased.")
			else
				print("CameraOffset not changed.")
			end
		end
		if inputObject.KeyCode == Enum.KeyCode.Y then
			if hmnid.CameraOffset.y ~= 5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X, hmnid.CameraOffset.Y + 0.5, hmnid.CameraOffset.Z)
				print("CameraOffset Y value increased.")
			else
				print("CameraOffset not changed.")
			end
		end
		if inputObject.KeyCode == Enum.KeyCode.N then
			if hmnid.CameraOffset.y ~= -5 then
				hmnid.CameraOffset = Vector3.new(hmnid.CameraOffset.X, hmnid.CameraOffset.Y - 0.5, hmnid.CameraOffset.Z)
				print("CameraOffset Y value decreased.")
			else
				print("CameraOffset not changed.")
			end
		end
	end
end

game:GetService("UserInputService").InputBegan:connect(onKeyPress)

You could check if game:GetService("UserInputService"):GetFocusedTextBox() is nil, because that means there is no textbox is focused, so it won't run if you are focused on a text box