def wait_for_chainlock_tip_all_nodes(self):
    for node in self.nodes:
        tip = node.getbestblockhash()
        self.wait_for_chainlock(node, tip)
def wait_for_chainlock_tip_all_nodes(self):
    for node in self.nodes:
        tip = node.getbestblockhash()
        self.wait_for_chainlock(node, tip)