CoreSchedules: StorageDescriptor<
    [Key: FixedSizeArray<2, number>],
    {
        assignments: [BrokerCoretimeInterfaceCoreAssignment, number][];
        end_hint?: number;
        next_schedule?: number;
    },
    true,
    "0",
>

Scheduled assignment sets.

Assignments as of the given block number. They will go into state once the block number is reached (and replace whatever was in there before).