def METHOD_NAME(self, client0: RpcClient):
    n = self.connect_nodes(client0, 3)
    assert client0.disconnect_peer(self.nodes[3].key, client0.UPDATE_NODE_OP_REMOVE)
    # On node 0: node 3 is blacklisted, and cannot immediately add it again
    assert client0.get_node(self.nodes[3].key) is None
    self.nodes[0].addnode(self.nodes[3].key, get_peer_addr(self.nodes[3]))
    assert client0.get_node(self.nodes[3].key) is None
    # On node 3: add node 0 as trusted node, so that try to create
    # outgoing connection to node 0.
    client3 = RpcClient(self.nodes[3])
    self.nodes[3].addnode(self.nodes[0].key, get_peer_addr(self.nodes[0]))
    node0 = client3.get_node(self.nodes[0].key)
    assert node0[0] == "trusted"
    # Node 3 create more outgoing connection, but it's blacklisted in node 0.
    time.sleep((self.test_house_keeping_ms + 100) / 1000)
    peer0 = client3.get_peer(self.nodes[0].key)
    # refused during handshake or not handshaked yet
    assert peer0 is None or len(peer0["protocols"]) == 0