Admob Mediation Test Suite Error

Unity Engine
1

Hey Everyone
I just installed Admob mediation test suite but Im getting error…

    foreach (string deviceHash in adRequest.TestDevices) {
                this.AddTestDevice(deviceHash);

            }

Error CS1061 'AdRequest' does not contain a definition for 'TestDevices' and no accessible extension method 'TestDevices' accepting a first argument of type 'AdRequest' could be found (are you missing a using directive or an assembly reference?) Assembly-CSharp C:\Users\rehan\OneDrive\Desktop\Zombie\ZombieGame\Assets\GoogleMobileAdsMediationTestSuite\Platforms\Android\MediationTestClient.cs 148 Active
2

Same. After Admob 6.0.0 update, they changed how you set your test ID into your ad request (even through Builder), then AdRequest has not accesible field TestDevices anymore.
As a transient fix, you can delete any AdRequest dependency within the Admob mediation test suite, but you are not supposed to request production ads while testing!