/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */
import { Transactionable } from '@nocobase/database';
import type Plugin from '../Plugin';
import type { WorkflowModel } from '../types';
import Processor from '../Processor';
export declare abstract class Trigger {
    readonly workflow: Plugin;
    constructor(workflow: Plugin);
    on(workflow: WorkflowModel): void;
    off(workflow: WorkflowModel): void;
    validateEvent(workflow: WorkflowModel, context: any, options: Transactionable): boolean | Promise<boolean>;
    duplicateConfig?(workflow: WorkflowModel, options: Transactionable): object | Promise<object>;
    validateContext?(values: any, workflow: WorkflowModel): null | void | {
        [key: string]: string;
    };
    sync?: boolean;
    execute?(workflow: WorkflowModel, values: any, options: Transactionable): void | Processor | Promise<void | Processor>;
}
export default Trigger;