code: def _log_agent_name(self, unique_name_file):
          
          agt_list = os.path.join(root_fldr, 'data', unique_name_file)
          if os.path.exists(agt_list):
              agents_logged = open(agt_list, 'r').read()
          else:
              agents_logged = ''
          print('agents_logged = ', agents_logged)
          if self._get_instance() not in agents_logged:
              with open(agt_list, 'a') as f:
                  f.write(self._get_instance() + '\n')
docs: logs the agent details to logfile
          unique_name_file (list_agents.txtlist_agents_names.txt) = list of all instances of all agents