/**
 * Toast Duration Constants
 */
export declare const TOAST_DURATION: {
    /** Extra short: 1.5 seconds */
    readonly EXTRA_SHORT: 1500;
    /** Short: 2 seconds */
    readonly SHORT: number;
    /** Medium: 3 seconds */
    readonly MEDIUM: number;
    /** Default: 4 seconds */
    readonly DEFAULT: number;
    /** Long: 5 seconds */
    readonly LONG: number;
    /** Extended: 7 seconds */
    readonly EXTENDED: number;
    /** Persistent: 0 (stays until dismissed) */
    readonly PERSISTENT: 0;
};
