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import { createLens, type Options } from "ldkit";import { dbo, rdfs, xsd } from "ldkit/namespaces";
// Create a context for query engineconst options: Options = {  sources: ["https://dbpedia.org/sparql"], // SPARQL endpoint  language: "en", // Preferred language};
// Crete a simple movie schemaconst MovieSchema = {  "@type": dbo.Film,  name: rdfs.label,} as const;
// Create a movie director schemaconst DirectorSchema = {  "@type": dbo.Person,  name: rdfs.label,  birthDate: {    "@id": dbo.birthDate,    "@type": xsd.date,  },  isDirectorOf: {    "@id": dbo.director,    "@inverse": true, // This is cool!    "@array": true,    "@schema": MovieSchema,  },} as const;
// Create a resource using the data schema and context aboveconst Persons = createLens(DirectorSchema, options);
// Get a particular person identified by IRIconst tarantino = await Persons.findByIri(  "http://dbpedia.org/resource/Quentin_Tarantino",);
if (tarantino === null) {  throw new Error("Tarantino not found?!");}
// List all movies directed by Tarantinoconsole.log("List of movies directed by Tarantino:");for (const movie of tarantino.isDirectorOf) {  console.log(movie.name);}