code: func (n *Node) apis() []rpc.API {
  	return []rpc.API{
  		{
  			Namespace: "admin",
  			Version:   "1.0",
  			Service:   NewPrivateAdminAPI(n),
  		}, {
  			Namespace: "admin",
  			Version:   "1.0",
  			Service:   NewPublicAdminAPI(n),
  			Public:    true,
  		}, {
  			Namespace: "debug",
  			Version:   "1.0",
  			Service:   debug.Handler,
  		}, {
  			Namespace: "web3",
  			Version:   "1.0",
  			Service:   NewPublicWeb3API(n),
  			Public:    true,
  		},
  	}
  }
docs: // apis returns the collection of RPC descriptors this node offers.