private object GetConfigMultipleOptionPropertyValueFromInput(JObject source, ConfigurationPropertyWithMultipleOptionValuesModelDefinition propertyModel, ConfigurationIdentity configIdentity, IEnumerable <ConfigurationSet> requiredConfigurationSets)
        {
            var collectionBuilder = propertyModel.GetCollectionBuilder();
            var optionSet         = optionSetFactory.Build(propertyModel, configIdentity, requiredConfigurationSets);

            foreach (var key in source.GetValue(propertyModel.ConfigurationPropertyName.ToLowerCamelCase()).Select(s => s.ToObject(propertyModel.PropertyType)))
            {
                if (optionSet.ContainsKey(key))
                {
                    collectionBuilder.Add(key);
                }
            }
            return(collectionBuilder.Collection);
        }
        private void UpdateMultipleOptions(object source, ConfigurationPropertyWithMultipleOptionValuesModelDefinition model, IEnumerable <ConfigurationSet> configurationSets, ConfigurationIdentity configIdentity)
        {
            var optionSet         = optionSetFactory.Build(model, configIdentity, configurationSets);
            var collectionBuilder = model.GetCollectionBuilder();
            var items             = model.GetPropertyValue(source) as IEnumerable;

            foreach (var item in items ?? Enumerable.Empty <object>())
            {
                if (optionSet.ContainsKey(item))
                {
                    collectionBuilder.Add(item);
                }
            }
            model.SetPropertyValue(source, collectionBuilder.Collection);
        }