code: def fetch_data_detailled_energy_use(self, start_date=None, end_date=None):
          
          if start_date is None:
              start_date = datetime.datetime.now(HQ_TIMEZONE) - datetime.timedelta(days=1)
          if end_date is None:
              end_date = datetime.datetime.now(HQ_TIMEZONE)
          # Get http session
          yield from self._get_httpsession()
          # Get login page
          login_url = yield from self._get_login_page()
          # Post login page
          yield from self._post_login_page(login_url)
          # Get p_p_id and contracts
          p_p_id, contracts = yield from self._get_p_p_id_and_contract()
          # If we don't have any contrats that means we have only
          # onecontract. Let's get it
          if contracts == {}:
              contracts = yield from self._get_lonely_contract()
          # For all contracts
          for contract, contract_url in contracts.items():
              if contract_url:
                  yield from self._load_contract_page(contract_url)
  
              data = {}
              dates = [(start_date + datetime.timedelta(n))
                       for n in range(int((end_date - start_date).days))]
  
              for date in dates:
                  # Get Hourly data
                  day_date = date.strftime("%Y-%m-%d")
                  hourly_data = yield from self._get_hourly_data(day_date, p_p_id)
                  data[day_date] = hourly_data['raw_hourly_data']
  
              # Add contract
              self._data[contract] = data
docs: Get detailled energy use from a specific contract.