how to set ...initialize multiple unit id in mopub ios sdk

my code

let config = MPMoPubConfiguration.init(adUnitIdForAppInitialization:"ad_unit_id")
        config.loggingLevel = .none

        MoPub.sharedInstance().initializeSdk(with: config) {
            print("mopub now use!!")
        }

why onle one unitid input? my app is use both banner and reward.. What should I enter? plz..help

If you want to initialise multiple ads units in mopub you can do like this:

    let sdkConfigBanner = MPMoPubConfiguration(adUnitIdForAppInitialization:MOPUB_AD_BANNER)
    sdkConfigBanner.loggingLevel = .info
    MoPub.sharedInstance().initializeSdk(with: sdkConfigBanner, completion: nil)


    let sdkConfigReward = MPMoPubConfiguration(adUnitIdForAppInitialization:MOPUB_AD_REWARD)
    sdkConfigReward.loggingLevel = .info
    MoPub.sharedInstance().initializeSdk(with: sdkConfigReward, completion: nil)