export type Fn<T extends unknown[], R> = (...args: T) => R;
export declare const createContext: <T>() => {
    contextualize<R>(context: T, callback: Fn<[], R>): R;
    getContext(): T;
};
type Constructor = new (...args: any) => any;
export interface Contextualized {
    contextualize<R>(callback: Fn<[], R>): Promise<R>;
}
export declare function Contextable(BaseClass?: Constructor): {
    new (...args: unknown[]): {
        [x: string]: any;
        contextualize<R>(callback: Fn<[], R>): R;
    };
    getContext<C extends Constructor>(this: C): InstanceType<C>;
};
export declare function contextualize<T extends Contextualized, K extends keyof T>(...args: unknown[]): void;
export {};