code: def get_deposit_address(self, currency):
          
          self._validate_currency(currency)
          self._log('get deposit address for {}'.format(currency))
          coin_name = self.major_currencies[currency]
          return self._rest_client.post(
              endpoint='/{}_deposit_address'.format(coin_name)
          )
docs: Return the deposit address for the given major currency.
  
          :param currency: Major currency name in lowercase (e.g. "btc", "eth").
          :type currency: str | unicode
          :return: Deposit address.
          :rtype: str | unicode