code: def SerializeUnsigned(self, writer):
          
          writer.WriteUInt32(self.Version)
          writer.WriteUInt256(self.PrevHash)
          writer.WriteUInt256(self.MerkleRoot)
          writer.WriteUInt32(self.Timestamp)
          writer.WriteUInt32(self.Index)
          writer.WriteUInt64(self.ConsensusData)
          writer.WriteUInt160(self.NextConsensus)
docs: Serialize unsigned data only.
  
          Args:
              writer (neo.IO.BinaryWriter):