code: def _merge_configs(configs):
      
      result = {
          u"contexts": [],
          u"users": [],
          u"clusters": [],
          u"current-context": None,
      }
      for config in configs:
          for k in {u"contexts", u"users", u"clusters"}:
              try:
                  values = config.doc[k]
              except KeyError:
                  pass
              else:
                  result[k].extend(values)
  
          if result[u"current-context"] is None:
              try:
                  result[u"current-context"] = config.doc[u"current-context"]
              except KeyError:
                  pass
  
      return KubeConfig(result)
docs: Merge one or more ``KubeConfig`` objects.
  
      :param list[KubeConfig] configs: The configurations to merge.
  
      :return KubeConfig: A single configuration object with the merged
          configuration.