const inputData: JsonLd = [
    {
      "@id": "http://a.example/Employee7",
      "http://xmlns.com/foaf/0.1/givenName": [
        {
          "@value": "Robert",
        },
        {
          "@value": "Taylor",
        },
      ],
      "http://xmlns.com/foaf/0.1/familyName": [
        {
          "@value": "Johnson",
        },
      ],
      "http://xmlns.com/foaf/0.1/mbox": [
        {
          "@id": "mailto:rtj@example.com",
        },
      ],
    },
  ];
  const inputContext: ContextDefinition = {
    givenName: {
      "@id": "http://xmlns.com/foaf/0.1/givenName",
      "@type": "http://www.w3.org/2001/XMLSchema#string",
      "@container": "@set",
    },
    familyName: {
      "@id": "http://xmlns.com/foaf/0.1/familyName",
      "@type": "http://www.w3.org/2001/XMLSchema#string",
    },
    phone: { "@id": "http://xmlns.com/foaf/0.1/phone", "@container": "@set" },
    mbox: { "@id": "http://xmlns.com/foaf/0.1/mbox" },
  };
  const compactJsonLd = await compact(inputData, inputContext);
  console.log(compactJsonLd);

  // Logs:
  // {
  //     '@id': 'http://a.example/Employee7',
  //     'http://xmlns.com/foaf/0.1/familyName': 'Johnson',
  //     'http://xmlns.com/foaf/0.1/givenName': [ 'Robert', 'Taylor' ],
  //     mbox: { '@id': 'mailto:rtj@example.com' }
  //   }