import type { Extension } from './extension';
export declare class ExtensionRegistry {
    #private;
    register(extension: Extension): void;
    get(id: string): Extension | undefined;
    all(): Extension[];
    /**
     * The extension for `id`, requiring its module first if it hasn't registered yet. Registration is a
     * require-time side effect and the require cache is shared, so this is a no-op once loaded.
     *
     * The shared namespace must already be installed (../namespace) — callers reach here via ../index.ts,
     * which imports it.
     */
    load(id: string, entryPointPath: string): Extension;
    reset(): void;
}
export declare const registry: ExtensionRegistry;
export declare function getExtension(id: string): Extension | undefined;
export declare function getAllExtensions(): Extension[];
export declare function resetRegistry(): void;