namespace Microsoft.Data.Entity.Metadata.Internal
{
    public class MetadataDictionary<TKey, TValue> : Object
        where TKey, class
        where TValue, class
    {
        public virtual TValue GetOrAdd(Func<TKey> getKey, Func<TKey> createKey, Func<TKey, TValue> createValue, ConfigurationSource configurationSource);
    }
}