public static IToOneResourceLinkageBuilder <TToResource> ToOne <TFromResource, TToResource>(this IIncludedResourcesBuilder includedResourcesBuilder, params IToOneResourceLinkage <TFromResource, TToResource>[] toOneResourceLinkageCollection)
            where TFromResource : class, IResource
            where TToResource : class, IResource
        {
            Contract.Requires(includedResourcesBuilder != null);

            return(includedResourcesBuilder.ToOne(toOneResourceLinkageCollection));
        }
        // PUBLIC METHODS ///////////////////////////////////////////////////
        #region Extension Methods
        public static IToOneResourceLinkageBuilder <TToResource> ToOne <TFromResource, TToResource>(this IIncludedResourcesBuilder includedResourcesBuilder, TFromResource fromResource, string fromRel, TToResource toResource)
            where TFromResource : class, IResource
            where TToResource : class, IResource
        {
            Contract.Requires(includedResourcesBuilder != null);
            Contract.Requires(fromResource != null);
            Contract.Requires(String.IsNullOrWhiteSpace(fromRel));

            var toOneResourceLinkage = new ToOneResourceLinkage <TFromResource, TToResource>(fromResource, fromRel, toResource);

            return(includedResourcesBuilder.ToOne(toOneResourceLinkage));
        }