Variable ancestryCodecConst

ancestryCodec: Descriptor<
    AncestryItem[],
    SequenceView<
        AncestryItem,
        ViewOf<
            AncestryItem,
            {
                headerHash: Descriptor<
                    Bytes<32> & pvm.WithOpaque<"HeaderHash">,
                    Bytes<32>,
                >;
                slot: Descriptor<
                    number & WithBytesRepresentation<4> & pvm.WithOpaque<
                        "TimeSlot[u32]",
                    >,
                    Bytes<4>,
                >;
            },
        >,
    >,
> = ...