QueuedSolution: StorageDescriptor<
    [],
    {
        compute: ElectionProviderMultiPhaseElectionCompute;
        score: {
            minimal_stake: bigint;
            sum_stake: bigint;
            sum_stake_squared: bigint;
        };
        supports: [SS58String, { total: bigint; voters: [SS58String, bigint][] }][];
    },
    true,
    never,
>

Current best solution, signed or unsigned, queued to be returned upon elect.

Always sorted by score.