Hash::MultiValue  {
    public methods (24) : …
    private methods (2) : …
    internals: {
        somekey   "somevalue"
    }
}
Hash::MultiValue  {
    public methods (24) : …
    private methods (2) : …
    internals: {
        upload   Plack::Request::Upload
    }
}
127.0.0.1 - - [14/Jun/2019:09:22:11 +0200] "POST / HTTP/1.1" 200 0 "-" "curl/7.65.0"