import { BsModalService } from 'ngx-bootstrap/modal';
import { LetterReadTableService } from '@schoolbelle/api/letter-read';
import { LoadingService } from '@schoolbelle/common/loading';
import { Letter } from '@schoolbelle/api/letter';
export declare class ReadListModalService {
    protected modal: BsModalService;
    protected loading: LoadingService;
    protected letterReadTable: LetterReadTableService;
    constructor(modal: BsModalService, loading: LoadingService, letterReadTable: LetterReadTableService);
    prepare(letter: Letter & {
        letter_id: number;
    }): import("rxjs").Observable<{
        letter: Partial<import("@schoolbelle/api/letter-to-board/public_api").LetterOnBoard>;
        rows: [string, number, string, import("@schoolbelle/api/letter-read/schoolbelle-api-letter-read").ReadAnswerInfo, import("@schoolbelle/api/letter-read/schoolbelle-api-letter-read").ReadAnswerInfo?, import("@schoolbelle/api/letter-read/schoolbelle-api-letter-read").ReadAnswerInfo?][];
    }>;
    protected show(): any;
    open(letter: Letter & {
        letter_id: number;
    }): import("rxjs").Observable<{}>;
}