class Node:
    def __init__(self, state):
        self.state = state
        self.action = ""
        self.parent: Node = None
        self.cost = 0

    def getState(self):
        return self.state

    def getAction(self):
        return self.action

    def setAction(self, action):
        self.action = action
        return self

    def getParent(self):
        return self.parent if self.parent else False

    def setParent(self, parent):
        self.parent = parent
        return self

    def getCost(self):
        return self.cost

    def setCost(self, cost):
        self.cost = cost

    def __lt__(self, other):
        return self.getState() < other.getState()