polkadotXcm.send(
  dest: V1
    parents: 1
    interior: Here
  message: V2
    XcmV2Instruction: WithdrawAsset
      id: Concrete
          parents: 0
          interior: Here
      fun: Fungible
          Fungible: 1000000000000
    XcmV2Instruction: BuyExecution
      id: Concrete
          parents: 0
          interior: Here
      fun: Fungible
          Fungible: 1_000_000_000_000
      weightLimit: Unlimited
    XcmV2Instruction: Transact
      originType: Native
      requireWeightAtMost: 4_000_000_000
      call: 0x3c00e90300000800000000001000
    XcmV2Instruction: RefundSurplus
    XcmV2Instruction: DepositAsset
      assets: Wild
        Wild: All
      maxAssets: 1
      beneficiary:
        parents: 0
        interior: X1
          X1: Parachain
            Parachain: 1000
)