% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it. **Parameters** `field` : Field that the query will target. `query` : Vector value to find top nearest neighbours for. `options` : (Optional) kNN additional options as [function named parameters](/reference/query-languages/esql/esql-syntax.md#esql-function-named-params). See [knn query](/reference/query-languages/query-dsl/query-dsl-match-query.md#query-dsl-knn-query) for more information.