import { InjectionKey, ShallowRef } from 'vue';
import { ObserveEngine } from './observer';
export interface LiquidContext {
    /** Portal target inside the silhouette svg — items append their blobs here. */
    portal: Readonly<ShallowRef<SVGGElement | null>>;
    /** Portal target inside the melt-overlay svg (above the content layer). */
    meltPortal: Readonly<ShallowRef<SVGGElement | null>>;
    /** The group's liquid fill — default colour of the intruding mix liquid. */
    fill: () => string;
    getGroup: () => HTMLDivElement | null;
    engine: ObserveEngine;
}
export declare const liquidContextKey: InjectionKey<LiquidContext>;
export declare function useLiquidContext(): LiquidContext;