class HashTable:
    _DELETED = object()

    def __init__(self, capacity=10):
        if type(capacity) != int:
            raise TypeError("Capacity must be an integer")
        if capacity <= 0:
            raise ValueError("Capacity must be positive")

        self._capacity = capacity
        self._table = [None] * capacity
        self._size = 0

    @property
    def capacity(self):
        return self._capacity