| 1234567891011121314151617181920 | using GenHTTP.Api.Content;namespace InABox.API{    public class RestHandlerBuilder : IHandlerBuilder<RestHandlerBuilder>    {        private readonly List<IConcernBuilder> _Concerns = new();        public RestHandlerBuilder Add(IConcernBuilder concern)        {            _Concerns.Add(concern);            return this;        }        public IHandler Build(IHandler parent)        {            return Concerns.Chain(parent, _Concerns, p => new RestHandler(p));        }    }}
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