/**
 * @module botbuilder-dialogs-adaptive
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { Expression } from 'adaptive-expressions';
import { Dialog } from 'botbuilder-dialogs';
import { OnCondition, OnConditionConfiguration } from './onCondition';
export interface OnDialogEventConfiguration extends OnConditionConfiguration {
    event?: string;
}
/**
 * Actions triggered when a dialog event is emitted.
 */
export declare class OnDialogEvent extends OnCondition implements OnDialogEventConfiguration {
    static $kind: string;
    /**
     * Gets or sets the event to fire on.
     */
    event: string;
    /**
     * Creates a new `OnDialogEvent` instance.
     *
     * @param event (Optional) The event to fire on.
     * @param actions (Optional) The actions to add to the plan when the rule constraints are met.
     * @param condition (Optional) The condition which needs to be met for the actions to be executed.
     */
    constructor(event?: string, actions?: Dialog[], condition?: string);
    /**
     * Create the expression for this condition.
     *
     * @returns [Expression](xref:adaptive-expressions.Expression) used to evaluate this rule.
     */
    protected createExpression(): Expression;
}
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