Generate a list of words randomly chosen from a wordlist.

        Keyword arguments:
        uppercase -- An integer number indicating how many uppercase
        characters are wanted: bigger than zero means that many characters and
        lower than zero means all uppercase except that many. Use 0 to make
        them all uppercase, and None for no one.

def generate(self, uppercase: int = None) -> list:
        """Generate a list of words randomly chosen from a wordlist.

        Keyword arguments:
        uppercase -- An integer number indicating how many uppercase
        characters are wanted: bigger than zero means that many characters and
        lower than zero means all uppercase except that many. Use 0 to make
        them all uppercase, and None for no one.

        """
        if (
                self.amount_n is None
                or self.amount_w is None
                or not self.wordlist
        ):
            raise ValueError("Can't generate passphrase: "
                             "wordlist is empty or amount_n or "
                             "amount_w isn't set")

        if uppercase is not None and not isinstance(uppercase, int):
            raise TypeError('uppercase must be an integer number')

        passphrase = []
        for _ in range(0, self.amount_w):
            passphrase.append(randchoice(self.wordlist).lower())

        # Handle uppercase
        lowercase = Aux.lowercase_count(passphrase)
        if passphrase and uppercase is not None:
            if (
                    uppercase < 0
                    and lowercase > (uppercase * -1)
            ):
                uppercase = lowercase + uppercase

            # If it's still negative, then means no uppercase
            if uppercase == 0 or uppercase > lowercase:
                # Make it all uppercase
                passphrase = Aux.make_all_uppercase(passphrase)
            elif uppercase > 0:
                passphrase = Aux.make_chars_uppercase(
                    passphrase,
                    uppercase
                )

        # Handle numbers
        for _ in range(0, self.amount_n):
            passphrase.append(randbetween(MIN_NUM, MAX_NUM))

        self.last_result = passphrase
        return passphrase