import type { RuntimeAdapter, RuntimeId } from "./base.js";
type AdapterLoader = () => Promise<RuntimeAdapter>;
/** @internal Runtime-adapter lifecycle coordinator. */
export declare class AdapterRegistry {
    private instance;
    private initialized;
    private operationTail;
    private pendingOperations;
    private pendingGet;
    private loaders;
    constructor();
    get(): Promise<RuntimeAdapter>;
    private doInitialize;
    set(adapter: RuntimeAdapter): Promise<void>;
    getSync(): RuntimeAdapter;
    isInitialized(): boolean;
    reset(): Promise<void>;
    registerLoader(id: RuntimeId, loader: AdapterLoader, options?: {
        overwrite?: boolean;
    }): void;
    private enqueue;
    private initializeAdapter;
    private shutdownAdapter;
}
export declare const runtime: AdapterRegistry;
export declare function getLocalAdapter(): Promise<RuntimeAdapter>;
export declare function resetLocalAdapter(): Promise<void>;
export type { RuntimeAdapter, RuntimeId } from "./base.js";
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