Insert a given card into the stack at a given indice.

        :arg Card card:
            The card to insert into the stack.
        :arg int indice:
            Where to insert the given card.

def insert(self, card, indice=-1):
        """
        Insert a given card into the stack at a given indice.

        :arg Card card:
            The card to insert into the stack.
        :arg int indice:
            Where to insert the given card.

        """
        self_size = len(self.cards)

        if indice in [0, -1]:
            if indice == -1:
                self.cards.append(card)
            else:
                self.cards.appendleft(card)
        elif indice != self_size:
            half_x, half_y = self.split(indice)
            self.cards = list(half_x.cards) + [card] + list(half_y.cards)