type Resolver<T> = (value: T) => void;
declare class SplitPromise<T> {
    promise: Promise<T>;
    resolver: Resolver<T>;
    constructor();
}
export declare class PromiseLookup<Types> {
    private args;
    constructor(args: {
        onKeyInit: (namespace: keyof Types, key: string) => void;
    });
    namespaces: Map<keyof Types, Map<string, SplitPromise<unknown>>>;
    private getNamespace;
    private getSplitPromise;
    get<N extends keyof Types>(namespace: N, key: string): Promise<Types[N]>;
    resolve<N extends keyof Types>(namespace: N, key: string, value: Types[N]): void;
}
export {};