export declare class QueryBuilder<TResult> implements PromiseLike<TResult> {
    protected _operation: () => Promise<TResult>;
    constructor(operation: () => Promise<TResult>);
    exec(): Promise<TResult>;
    then<TResult1 = TResult, TResult2 = never>(onfulfilled?: ((value: TResult) => TResult1 | PromiseLike<TResult1>) | null, onrejected?: ((reason: unknown) => TResult2 | PromiseLike<TResult2>) | null): PromiseLike<TResult1 | TResult2>;
}
//# sourceMappingURL=query-builder.d.ts.map