How do I get the player's team?

I wanted to make a system that only people from a certain team can execute a function.

Here's what I have (It doesn't work and no error message shows up in the output):

local UIS = game:GetService("UserInputService")
local players = game:GetService("Players")

local player = players.LocalPlayer

local function getKey(input)
    if input.UserInputType == Enum.UserInputType.Keyboard then
        local keyPressed = input.KeyCode

        if keyPressed == Enum.KeyCode.E then
            print("The player pressed E!")
            
            if player.Team == "Killer" then
                print("The player is a killer!")
            end
        end
    end
end

UIS.InputBegan:Connect(getKey)