Bachelor-Arbeit-Luca-Haas/Assets/Convai/Scripts/Runtime/Extensions/GameObjectExtension.cs

using UnityEngine;

public static class GameObjectExtension
{
    public static T GetOrAddComponent<T>(this GameObject gameObject) where T : Component
    {
        return gameObject.TryGetComponent(out T t) ? t : gameObject.AddComponent<T>();
    }
}