MaxParaHeadDataSize: PlainDescriptor<number>

Maximal size (in bytes) of the SCALE-encoded parachain head data (bp_parachains::ParaStoredHeaderData).

Keep in mind that the size of any tracked parachain header data must not exceed this value. So if you're going to track multiple parachains, one of which is using large hashes, you shall choose this maximal value.

There's no mandatory headers in this pallet, so it can't stall if there's some header that exceeds this bound.