Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/@grpc/grpc-js/build/src/http_proxy.d.ts

@@ -0,0 +1,16 @@
+import { Socket } from 'net';
+import { SubchannelAddress } from './subchannel-address';
+import { ChannelOptions } from './channel-options';
+import { GrpcUri } from './uri-parser';
+interface CIDRNotation {
+    ip: number;
+    prefixLength: number;
+}
+export declare function parseCIDR(cidrString: string): CIDRNotation | null;
+export interface ProxyMapResult {
+    target: GrpcUri;
+    extraOptions: ChannelOptions;
+}
+export declare function mapProxyName(target: GrpcUri, options: ChannelOptions): ProxyMapResult;
+export declare function getProxiedConnection(address: SubchannelAddress, channelOptions: ChannelOptions): Promise<Socket | null>;
+export {};