local function getValue(env)
    local value = env.getRadiation()
    print(value.radiation, value.unit)
    local stringValue = tostring(value.radiation) .. tostring(value.unit)
    return stringValue
end

local function watch()
    while true do
        sleep(0.05)  -- Update every tenth second
    end
end

local function startUp()
end

local function shutdown()
end

local function report()
        local color = colors.black
        monitor.setBackgroundColor(color)
        local internal = getValue(internalEnvironment)
        local external = getValue(externalEnvironment)
        setNewLine()
        monitor.write("Internal Radiation Level: " .. internal)
        setNewLine()
        monitor.write("External Radiation Level: " .. external)
end
return { report = report, watch = watch, startUp = startUp, shutdown = shutdown }