import { Logger } from '@n8n/backend-common';
import { BinaryDataService } from 'n8n-core';
import type { INodeExecutionData } from 'n8n-workflow';
type PayloadSlots = Array<INodeExecutionData[] | null | undefined>;
export declare class EngineV2PayloadGuard {
    private readonly binaryDataService;
    private readonly logger;
    constructor(binaryDataService: BinaryDataService, logger: Logger);
    assertNoFiles(slots: PayloadSlots, reason: string): void;
    private filesIn;
    private deleteStoredFiles;
}
export {};