code: def personsAtHome(self, home=None):
          
          if not home: home = self.default_home
          home_data = self.homeByName(home)
          atHome = []
          for p in home_data['persons']:
              #Only check known persons
              if 'pseudo' in p:
                  if not p["out_of_sight"]:
                      atHome.append(p['pseudo'])
          return atHome
docs: Return the list of known persons who are currently at home