import type{LitElement}from'lit';type Constructor<T> =new(...args:any[])=>T;
/**
* Mixin for a component whose own `title` reactive property is rendered
* somewhere inside its shadow tree (e.g. a truncating heading that carries
* its own scoped native `title` attribute for a disclosure tooltip). Once
* Lit has synced a host-level `title` attribute into that property, the
* host's own `title` attribute is stripped -- otherwise the browser's
* global tooltip attribute would still be present on the host itself,
* making the whole element show a native tooltip that repeats the same text
* the shadow-tree element already shows on its own.
*
* Normalization lives in `attributeChangedCallback`, not Lit's later update hook: assigning the
* same title value twice does not schedule a second reactive update, but it still must not leave a
* native tooltip on the host. Removing an observed attribute fires the callback synchronously just
* like setting one does; a re-entrancy guard prevents that removal from resetting the property.
*
* The explicit return-type annotation is required so TypeScript can emit a
* declaration file for the (otherwise anonymous) mixin class (avoids TS4094).
*/
export declare function StripHostTitleAttribute<T extends Constructor<LitElement>>(Base:T):T;export{};