/**
 * Minimal shape of mongoose accepted by `connectMongo`. Passing the real
 * mongoose object satisfies it; api-server takes mongoose as a parameter
 * (dependency injection) so it doesn't have to declare mongoose as a
 * dependency itself.
 */
interface MongooseLike {
    set(option: string, value: unknown): unknown;
    connection: {
        on(event: string, listener: (err?: Error) => void): unknown;
    };
    connect(uri: string, options: {
        maxPoolSize: number;
        minPoolSize: number;
        serverSelectionTimeoutMS: number;
    }): Promise<unknown>;
}
export declare function connectMongo(mongoose: MongooseLike, uri: string): Promise<void>;
export {};