text: <start_of_text>Create Haystack document search system consisting of bm25 retriever and ElasticsearchDocumentStore<response>{"version": "1.6.0", "components": [{"name": "elasticsearch_document_store", "type": "ElasticsearchDocumentStore", "params": {"index": "document", "content_field": "content", "embedding_field": "embedding", "scheme": "http", "refresh_type": "wait_for", "similarity": "dot_product", "return_embedding": false, "duplicate_documents": "overwrite", "index_type": "flat", "scroll": "1d", "use_system_proxy": false}}, {"name": "bm25_retriever", "type": "BM25Retriever", "params": {}}], "pipelines": [{"name": "my_doc_search_pipeline", "nodes": [{"inputs": ["Query"], "name": "bm25_retriever"}, {"inputs": ["bm25_retriever"]}]}]}<end_of_text>