//article[ft:query-vector(., $vec)]
//article[ft:query-vector(., $vec, 10)]
//article[ft:query-field-vector("embedding", $vec)]
//article[ft:query-field-vector("embedding", $vec, 10)]

//article[ft:query-vector(., $vec, 10, map {
  "filter-query": "keyword",
  "filter": map { "field": "year", "value": 2020 },
  "facets": map { "year": "2020" }
})]
