import { AnimationTriggerMetadata } from '@angular/animations';
/**
 * Below are all the animations for the mtx-popover component.
 * Animation duration and timing values are based on AngularJS Material.
 */
/**
 * This animation controls the popover panel's entry and exit from the page.
 *
 * When the popover panel is added to the DOM, it scales in and fades in its border.
 *
 * When the popover panel is removed from the DOM, it simply fades out after a brief
 * delay to display the ripple.
 */
export declare const transformPopover: AnimationTriggerMetadata;