// This file is autogenerated, DO NOT EDIT
// search/search-your-data/retrievers-examples.asciidoc:448

[source, python]
----
resp = client.search(
    index="retrievers_example",
    retriever={
        "rrf": {
            "retrievers": [
                {
                    "standard": {
                        "query": {
                            "query_string": {
                                "query": "(information retrieval) OR (artificial intelligence)",
                                "default_field": "text"
                            }
                        }
                    }
                },
                {
                    "knn": {
                        "field": "vector",
                        "query_vector": [
                            0.23,
                            0.67,
                            0.89
                        ],
                        "k": 3,
                        "num_candidates": 5
                    }
                }
            ],
            "rank_window_size": 10,
            "rank_constant": 1
        }
    },
    collapse={
        "field": "year",
        "inner_hits": {
            "name": "topic related documents",
            "_source": [
                "year"
            ]
        }
    },
    source=False,
)
print(resp)
----
