Winning: StorageDescriptor<[Key: number], FixedSizeArray<36, [SS58String, number, bigint] | undefined>, true>

The winning bids for each of the 10 ranges at each sample in the final Ending Period of the current auction. The map's key is the 0-based index into the Sample Size. The first sample of the ending period is 0; the last is Sample Size - 1.