import React from 'react';
export type SlotComponent<P = any> = React.ComponentType<P>;
interface SlotEntry {
    id: string;
    component: SlotComponent;
    priority: number;
    source?: string;
}
type Listener = () => void;
declare class SlotRegistryImpl {
    private slots;
    private listeners;
    register(slotId: string, component: SlotComponent, opts?: {
        priority?: number;
        source?: string;
    }): () => void;
    get(slotId: string): SlotEntry[];
    subscribe(listener: Listener): () => void;
    private emit;
}
export declare const slotRegistry: SlotRegistryImpl;
export interface SlotProps {
    /** Slot id. */
    name: string;
    /** Props forwarded to each contribution component. */
    props?: Record<string, any>;
    /** Fallback element shown when no contribution is registered. */
    fallback?: React.ReactNode;
}
export declare function Slot({ name, props, fallback }: SlotProps): React.JSX.Element;
export {};
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