code: def merge(self, hosts):
          
          for extinfo in self:
              host_name = extinfo.get_name()
              host = hosts.find_by_name(host_name)
              if host is not None:
                  # Fusion
                  self.merge_extinfo(host, extinfo)
docs: Merge extended host information into services
  
          :param hosts: hosts list, to look for a specific one
          :type hosts: alignak.objects.host.Hosts
          :return: None