import { ActionBehavior } from '@zcomponent/core';
/**
 * Switches the current active camera.
 *
 * The camera that is marked as `active` is used by the renderer to render the scene.
 *
 * You can also:
 * - Use the `activate` method of the camera component.
 * - Use `activateAtStart` property of the camera component.
 * @zbehavior
 * @zicon videocam
 * @zgroup Actions
 */
export declare class ActivateCamera extends ActionBehavior {
    /**
     * The camera to activate
     * @zprop
     * @zvalues nodeids three/Object3D/Camera/**
     */
    camera: string;
    perform(): void;
}