/** Localization key plus normalized numeric value for a short elapsed duration. */
export interface LyraDurationMessageValue{readonly key:'durationMilliseconds'|'durationSeconds';readonly value:number;}
/**
* Converts milliseconds to the one shared short-duration value model. Callers retain ownership of
* locale-aware numeric formatting and message interpolation, so this helper is side-effect-free
* and importing one granular component never pulls another component into its graph.
*/
export declare function durationMessageValue(milliseconds:number):LyraDurationMessageValue;