docs: def load_case(adapter, case_obj, update=False):
      """Load a case to the database
  
      Args:
          adapter: Connection to database
          case_obj: dict
          update(bool): If existing case should be updated
  
      Returns:
          case_obj(models.Case)
      """
      # Check if the case already exists in database.
      existing_case = adapter.case(case_obj)
      if existing_case:
          if not update:
              raise CaseError("Case {0} already exists in database".format(case_obj['case_id']))
          case_obj = update_case(case_obj, existing_case)
  
      # Add the case to database
      try:
          adapter.add_case(case_obj, update=update)
      except CaseError as err:
          raise err
  
      return case_obj