export declare const ORIGIN = "Origin";
export declare const CONTENT_TYPE = "Content-Type";
export declare const APPLICATION_JSON = "application/json";
export declare const getListen: (url: URL) => {
    host: string;
    port: number;
};
declare type StaticOrigin = boolean | string | RegExp | (boolean | string | RegExp)[];
export declare const corsOptions: (allowedOrigins: Set<string>) => {
    origin(requestOrigin: string | undefined, callback: (err: Error | null, options?: StaticOrigin) => void): void;
};
export {};
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