public <S> S getFromGateway(final String path, final Type type) throws IOException {
        return this.getFromGateway(path, null, type);
    }
Send a get http request to shenyu gateway without headers.

@param <S>  response type
@param path path
@param type type of response passed to {@link Gson#fromJson(String, Type)}
@return response from gateway
@throws IOException IO exception
shenyu-integrated-test/shenyu-integrated-test-common/src/main/java/org/apache/shenyu/integratedtest/common/helper/HttpHelper.java