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diff --git a/src/mongo/db/pipeline/process_interface/replica_set_node_process_interface.h b/src/mongo/db/pipeline/process_interface/replica_set_node_process_interface.h
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+/**
+ *    Copyright (C) 2018-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 "mongo/db/ops/write_ops_gen.h"
+#include "mongo/db/pipeline/pipeline.h"
+#include "mongo/db/pipeline/process_interface/non_shardsvr_process_interface.h"
+
+namespace mongo {
+
+/**
+ * An implementation of the MongoProcessInterface used on replica set nodes when sharding is not
+ * enabled.
+ */
+class ReplicaSetNodeProcessInterface final : public NonShardServerProcessInterface {
+public:
+    using NonShardServerProcessInterface::NonShardServerProcessInterface;
+
+    static executor::TaskExecutor* getReplicaSetNodeExecutor(ServiceContext* service);
+
+    static executor::TaskExecutor* getReplicaSetNodeExecutor(OperationContext* opCtx);
+
+    static void setReplicaSetNodeExecutor(ServiceContext* service,
+                                          std::unique_ptr<executor::TaskExecutor> executor);
+
+    ReplicaSetNodeProcessInterface(OperationContext* opCtx, executor::TaskExecutor* executor)
+        : NonShardServerProcessInterface(opCtx), _executor(executor) {}
+
+    virtual ~ReplicaSetNodeProcessInterface() = default;
+
+    Status insert(const boost::intrusive_ptr<ExpressionContext>& expCtx,
+                  const NamespaceString& ns,
+                  std::vector<BSONObj>&& objs,
+                  const WriteConcernOptions& wc,
+                  boost::optional<OID> targetEpoch) final;
+    StatusWith<UpdateResult> update(const boost::intrusive_ptr<ExpressionContext>& expCtx,
+                                    const NamespaceString& ns,
+                                    BatchedObjects&& batch,
+                                    const WriteConcernOptions& wc,
+                                    UpsertType upsert,
+                                    bool multi,
+                                    boost::optional<OID> targetEpoch) override;
+
+    std::list<BSONObj> getIndexSpecs(OperationContext* opCtx,
+                                     const NamespaceString& ns,
+                                     bool includeBuildUUIDs);
+    void renameIfOptionsAndIndexesHaveNotChanged(OperationContext* opCtx,
+                                                 const BSONObj& renameCommandObj,
+                                                 const NamespaceString& targetNs,
+                                                 const BSONObj& originalCollectionOptions,
+                                                 const std::list<BSONObj>& originalIndexes);
+    void createCollection(OperationContext* opCtx,
+                          const std::string& dbName,
+                          const BSONObj& cmdObj);
+    void dropCollection(OperationContext* opCtx, const NamespaceString& collection);
+    void createIndexesOnEmptyCollection(OperationContext* opCtx,
+                                        const NamespaceString& ns,
+                                        const std::vector<BSONObj>& indexSpecs);
+    std::unique_ptr<Pipeline, PipelineDeleter> attachCursorSourceToPipeline(
+        const boost::intrusive_ptr<ExpressionContext>& expCtx,
+        Pipeline* pipeline,
+        bool allowTargetingShards) override;
+
+private:
+    executor::TaskExecutor* _executor;
+};
+
+}  // namespace mongo