set_parameter: TxDescriptor<{
    key_value: Enum<{
        Inflation: Enum<{
            Falloff: FixedSizeArray<1, bigint | undefined>;
            IdealStake: FixedSizeArray<1, bigint | undefined>;
            MaxInflation: FixedSizeArray<1, bigint | undefined>;
            MinInflation: FixedSizeArray<1, bigint | undefined>;
            UseAuctionSlots: FixedSizeArray<1, boolean | undefined>;
        }>;
    }>;
}>

Set the value of a parameter.

The dispatch origin of this call must be AdminOrigin for the given key. Values be deleted by setting them to None.