Adds a sink state
        Args:
            alphabet (list): The input alphabet
        Returns:
            None

def init_from_acceptor(self, acceptor):
        """
        Adds a sink state
        Args:
            alphabet (list): The input alphabet
        Returns:
            None
        """
        self.states = copy.deepcopy(acceptor.states)
        self.alphabet = copy.deepcopy(acceptor.alphabet)
        self.osyms = copy.deepcopy(acceptor.osyms)
        self.isyms = copy.deepcopy(acceptor.isyms)