EncodeBlockBody encode types.Body to ssz bytes.

FromBlockBodyLegacy convert BlockBodyLegacy to types.Body.

FromPortalBlockBodyShanghai convert PortalBlockBodyShanghai to types.Body.

FromPortalReceipts convert PortalReceipts to types.Receipt.

ToPortalReceipts convert types.Receipt to PortalReceipts.

BlockHeaderProof is a ssz union type Union[None, AccumulatorProof].