interface InheritedContextHost extends Element{readonly isConnected:boolean;requestUpdate():unknown;}
/**
* Enrolls one connected Lyra host in shared owner-realm observers. Roots are acquired lazily only
* after the host consumes locale or direction. Sensitivity and the last rendered baselines live
* in a weak per-host state so disconnect/reconnect, reparenting and adoption can compare the new
* tree without keeping a detached host alive.
*/
export declare function observeInheritedContext(host:InheritedContextHost):()=>void;
/** Records that a connected host's rendered output consumed inherited locale. */
export declare function recordInheritedLocaleRead(host:Element,locale:string|undefined):void;
/** Records that a connected host's rendered output consumed inherited CSS direction. */
export declare function recordInheritedDirectionRead(host:Element,direction:'ltr'|'rtl'):void;
/** Begins one Lit update epoch so observer delivery can recognize context already rendered. */
export declare function beginInheritedContextUpdate(host:Element):void;
/** Records that the active update reached Lit's DOM commit rather than being skipped. */
export declare function markInheritedContextUpdateRendered(host:Element):void;
/** Commits or discards reads staged during one Lit update epoch. */
export declare function finishInheritedContextUpdate(host:Element):void;
/**
* Captures a direction-sensitive host's rendered baseline before a synchronous host attribute
* callback invalidates its cache. `slot` additionally changes the flattened ancestor chain.
*/
export declare function queueInheritedDirectionChange(host:Element,flattenedTreeChanged?:boolean):void;export{};