Args:
            states_num (int): Number of States
        Returns:
            list: An initialized list

def _create_states(self, states_num):
        """
        Args:
            states_num (int): Number of States
        Returns:
            list: An initialized list
        """
        states = []
        for i in range(0, states_num):
            states.append(i)
        return states