import { LedgerImageService } from './ledger-image.service';
export declare class LedgerImageController {
    private ledgerImageService;
    constructor(ledgerImageService: LedgerImageService);
    getImage(actNo: string): Promise<{
        img: string | null;
        id: number;
        kind: number;
        tno: string;
        note: string | null;
    } | {
        img: null;
        note: null;
    }>;
    upsertImage(actNo: string, body: {
        img?: string;
        note?: string;
    }): Promise<{
        img: string | null;
        id: number;
        kind: number;
        tno: string;
        note: string | null;
    }>;
    deleteImage(actNo: string): Promise<{
        id: number;
        kind: number;
        tno: string;
        note: string | null;
        img: Buffer | null;
    }>;
}