code: def getBillableItems(self):
          
          # Assigned profiles
          profiles = self.getProfiles()
          # Billable profiles which have a fixed price set
          billable_profiles = filter(
              lambda pr: pr.getUseAnalysisProfilePrice(), profiles)
          # All services contained in the billable profiles
          billable_profile_services = reduce(lambda a, b: a+b, map(
              lambda profile: profile.getService(), billable_profiles), [])
          # Keywords of the contained services
          billable_service_keys = map(
              lambda s: s.getKeyword(), set(billable_profile_services))
          # The billable items contain billable profiles and single selected analyses
          billable_items = billable_profiles
          # Get the analyses to be billed
          exclude_rs = ["retracted", "rejected"]
          for analysis in self.getAnalyses(is_active=True):
              if analysis.review_state in exclude_rs:
                  continue
              if analysis.getKeyword in billable_service_keys:
                  continue
              billable_items.append(api.get_object(analysis))
          return billable_items
docs: Returns the items to be billed