Updated the files.

my-app/node_modules/http-proxy-middleware/dist/handlers/response-interceptor.d.ts

@@ -0,0 +1,12 @@
+/// <reference types="node" />
+import type * as http from 'http';
+declare type Interceptor = (buffer: Buffer, proxyRes: http.IncomingMessage, req: http.IncomingMessage, res: http.ServerResponse) => Promise<Buffer | string>;
+/**
+ * Intercept responses from upstream.
+ * Automatically decompress (deflate, gzip, brotli).
+ * Give developer the opportunity to modify intercepted Buffer and http.ServerResponse
+ *
+ * NOTE: must set options.selfHandleResponse=true (prevent automatic call of res.end())
+ */
+export declare function responseInterceptor(interceptor: Interceptor): (proxyRes: http.IncomingMessage, req: http.IncomingMessage, res: http.ServerResponse) => Promise<void>;
+export {};