Parse an RSS 2.0 document into its channel metadata and raw items. Throws on a
document with no <channel> (e.g. the portal's HTML shell or an empty body —
the engine turns those into a typed LebensmittelwarnungParseError first, but
this is a defensive backstop).
Parse an RSS 2.0 document into its channel metadata and raw items. Throws on a document with no
<channel>(e.g. the portal's HTML shell or an empty body — the engine turns those into a typed LebensmittelwarnungParseError first, but this is a defensive backstop).