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-/**
- * Copyright (C) 2023-present MongoDB, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the Server Side Public License, version 1,
- * as published by MongoDB, Inc.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * Server Side Public License for more details.
- *
- * You should have received a copy of the Server Side Public License
- * along with this program. If not, see
- * <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- * As a special exception, the copyright holders give permission to link the
- * code of portions of this program with the OpenSSL library under certain
- * conditions as described in each individual source file and distribute
- * linked combinations including the program with the OpenSSL library. You
- * must comply with the Server Side Public License in all respects for
- * all of the code used other than as permitted herein. If you modify file(s)
- * with this exception, you may extend this exception to your version of the
- * file(s), but you are not obligated to do so. If you do not wish to do so,
- * delete this exception statement from your version. If you delete this
- * exception statement from all source files in the program, then also delete
- * it in the license file.
- */
-
-#pragma once
-
-#include <absl/hash/hash.h>
-#include <boost/optional.hpp>
-
-#include "mongo/bson/bsonobj.h"
-#include "mongo/bson/simple_bsonobj_comparator.h"
-#include "mongo/db/query/query_shape/shape_helpers.h"
-
-namespace mongo::query_stats {
-
-/**
- * An abseil compatible hash function for BSONObjects. Note that this hasher ignores any collation
- * and uses the "simple" comparisons. This is fine and correct for query stats, but this is
- * intentionally placed within the 'query_stats' namespace to avoid polluting the whole codebase
- * with this helper which could cause an accidental bug where we ignore the request's collation.
- */
-template <typename H>
-H AbslHashValue(H h, const BSONObj& obj) {
- return H::combine(std::move(h), simpleHash(obj));
-}
-
-} // namespace mongo::query_stats