/**
* One logical action contributed to a parent toolbar.
*
* Composite controls keep their implementation nodes private: the parent can move the sequential
* tab stop, focus an action, and associate a composed event with that action without receiving the
* underlying element. `id` must remain stable while the logical action remains available.
*/
export interface LyraToolbarAction{readonly id:string;readonly disabled:boolean;focus(options?:FocusOptions):void;setTabIndex(tabIndex:0| -1):void;
/** Releases a parent toolbar's current tabindex lease, restoring an untouched authored value. */
releaseTabIndex?():void;matchesEventPath(path:readonly EventTarget[]):boolean;}
/**
* Public opt-in protocol for a composite child of `<lr-message-actions>`.
*
* Return actions in visual navigation order. Dispatch a bubbling, composed
* `lr-toolbar-actions-change` event whenever their order or availability changes so an enclosing
* toolbar can reconcile its roving tab stop without observing the component's shadow tree.
*/
export interface LyraToolbarActionProvider{getToolbarActions():readonly LyraToolbarAction[];}
/** Realm-neutral structural check for the logical-toolbar provider protocol. */
export declare function isLyraToolbarActionProvider(value:unknown):value is LyraToolbarActionProvider;