namespace Microsoft.ML.Probabilistic.Distributions.Automata
{
    public class WeightFunctions<TSequence, TElement, TElementDistribution, TSequenceManipulator, TAutomaton>
        where TSequence, class, IEnumerable<TElement>
        where TElementDistribution, new(), CanComputeProduct<TElementDistribution>, CanCreatePartialUniform<TElementDistribution>, CanGetLogAverageOf<TElementDistribution>, IImmutableDistribution<TElement, TElementDistribution>, SummableExactly<TElementDistribution>
        where TSequenceManipulator, new(), ISequenceManipulator<TSequence, TElement>
        where TAutomaton, new(), Automaton<TSequence, TElement, TElementDistribution, TSequenceManipulator, TAutomaton>
    {
        [DataContract]
        [Quality(QualityBand.Experimental)]
        public readonly struct MultiRepresentationWeightFunction<TDictionary> : IWeightFunction, IWeightFunction<MultiRepresentationWeightFunction<TDictionary>>, IEquatable<MultiRepresentationWeightFunction<TDictionary>>
            where TDictionary, new(), DictionaryWeightFunction<TDictionary>
        {
            public MultiRepresentationWeightFunction<TDictionary> Sum(double weight1, MultiRepresentationWeightFunction<TDictionary> weightFunction, double weight2);
        }
    }
}