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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def home_page(self, tld_type: Optional[TLDType] = None) -> str: """Generate a random home page. :param tld_type: TLD type. :return: Random home page. :Example: http://www.fontir.info """

        resource = self.random.choice(USERNAMES)
        domain = self.top_level_domain(
            tld_type=tld_type,
        )

        return 'http://www.{}{}'.format(
            resource, domain)