code: def get_specific_config(prefix):
      
      conf_dict = {}
      for uuid, val in cfg.CONF.get(prefix, {}).items():
          conf_dict[uuid] = dict(val)
      return conf_dict
docs: Retrieve config based on the format [<prefix>:<value>].
  
      returns: a dict, {<UUID>: {<key1>:<value1>, <key2>:<value2>, ...}}