import { Model } from 'sequelize-typescript';
import { FlowNodeInstanceModel } from './FlowNodeInstance';
export declare class ExternalTaskModel extends Model<ExternalTaskModel> {
    externalTaskId: string;
    workerId: string;
    topic: string;
    isSingleTry?: boolean;
    flowNodeInstanceId: string;
    lockExpirationTime: Date;
    state: string;
    finishedAt: Date;
    createdAt?: Date;
    updatedAt?: Date;
    flowNodeInstance: FlowNodeInstanceModel;
}