@Override
    public void write(byte[] buf, int off, int len) {
        out.write(buf, off, len);
    }
An extremely simple Thrift-over-HTTP/2 client which sends and receives a single Thrift request/response
per connection.
thrift/thrift0.13/src/test/java/com/linecorp/armeria/server/thrift/AbstractTHttp2Client.java