code: def deterministic_key(self, seed, index):
          
  
          seed = self._process_value(seed, 'seed')
          index = self._process_value(index, 'int')
  
          payload = {"seed": seed, "index": index}
  
          resp = self.call('deterministic_key', payload)
  
          return resp
docs: Derive deterministic keypair from **seed** based on **index**
  
          :param seed: Seed used to get keypair
          :type seed: str
  
          :param index: Index of the generated keypair
          :type index: int
  
          :raises: :py:exc:`nano.rpc.RPCException`
  
          >>> rpc.deterministic_key(
          ...     seed="0000000000000000000000000000000000000000000000000000000000000000",
          ...     index=0
          ... )
          {
            "private": "9F0E444C69F77A49BD0BE89DB92C38FE713E0963165CCA12FAF5712D7657120F",
            "public": "C008B814A7D269A1FA3C6528B19201A24D797912DB9996FF02A1FF356E45552B",
            "account": "xrb_3i1aq1cchnmbn9x5rsbap8b15akfh7wj7pwskuzi7ahz8oq6cobd99d4r3b7"
          }