treasury: {
      /**
       * A new asset spend proposal has been approved.
       **/
      AssetSpendApproved: AugmentedEvent<ApiType, [index: u32, assetKind: u32, amount: u128, beneficiary: AccountId32, validFrom: u32, expireAt: u32], { index: u32, assetKind: u32, amount: u128, beneficiary: AccountId32, validFrom: u32, expireAt: u32 }>;