static HttpRequestWriter streaming(HttpMethod method, String path) {
        requireNonNull(method, "method");
        requireNonNull(path, "path");
        return streaming(RequestHeaders.of(method, path));
    }
Creates a new HTTP request that can be used to stream an arbitrary number of {@link HttpObject}
with the initial {@link RequestHeaders} of the specified {@link HttpMethod} and {@code path}.
core/src/main/java/com/linecorp/armeria/common/HttpRequest.java