TypeScript Nested Namespace Declarations

declare namespace wx { namespace request { type Param = { url: string; data?: any | string | ArrayBuffer; header?: any; method?: string; dataType?: string; responseType?: string; success?: ParamPropSuccess; fail?: ParamPropFail; complete?: ParamPropComplete; };

type ParamPropSuccess = (res: ParamPropSuccessParam) => any;
type ParamPropSuccessParam = {
  data: any | string | ArrayBuffer;
  statusCode: number;
  header: any;
};

type ParamPropFail = (err: any) => any;

type ParamPropComplete = () => any;
type Return = {
  abort: ReturnPropAbort;
};
type ReturnPropAbort = () => any;

}

function request(OBJECT: request.Param): request.Return; }