class NativeCache:
    def __init__(self, sz):
        self.size = sz
        self.slots = [None] * self.size
        self.values = [None] * self.size
        self.hits = [0] * self.size
class NativeCache:
    def __init__(self, sz):
        self.size = sz
        self.slots = [None] * self.size
        self.values = [None] * self.size
        self.hits = [0] * self.size