Getting an Error::UnexpectedBox when decoding a minf box with hdlr box.

According to the specs, ISO/IEC 14496-12:2022, 8.4.3.1:

"The Handler Reference Box (hdlr) specifies the media handler for the media information in this media information box (minf). It shall be present and contains the handler type (e.g., 'vide' for video, 'soun' for audio)."

I think we are missing this box for minf?