/**
 * Throws an exception for the case when popover trigger doesn't have a valid mde-popover instance
 */
export declare function throwMdePopoverMissingError(): void;
/**
 * Throws an exception for the case when popover's mdePopoverPositionX value isn't valid.
 * In other words, it doesn't match 'before' or 'after'.
 */
export declare function throwMdePopoverInvalidPositionX(): void;
/**
 * Throws an exception for the case when popover's mdePopoverPositionY value isn't valid.
 * In other words, it doesn't match 'above' or 'below'.
 */
export declare function throwMdePopoverInvalidPositionY(): void;