Account: StorageDescriptor<
    [{ interior: XcmV3Junctions; parents: number }, SS58String],
    {
        balance: bigint;
        reason: Enum<
            {
                Consumer: undefined;
                DepositFrom: [SS58String, bigint];
                DepositHeld: bigint;
                DepositRefunded: undefined;
                Sufficient: undefined;
            },
        >;
        status: Enum<{ Blocked: undefined; Frozen: undefined; Liquid: undefined }>;
    },
    true,
    never,
>

The holdings of a specific account for a specific asset.