import { IAttachmentOptionsExtended } from '@novu/stateless';
import { StorageService } from './storage.service';
export declare class StorageHelperService {
    private storageService;
    constructor(storageService: StorageService);
    private areAttachmentsMissing;
    uploadAttachments(attachments?: IAttachmentOptionsExtended[]): Promise<void>;
    getAttachments(attachments?: IAttachmentOptionsExtended[]): Promise<void>;
    deleteAttachments(attachments?: IAttachmentOptionsExtended[]): Promise<void>;
}
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