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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 is_blacklisted(self, request: AxesHttpRequest, credentials: dict = None) -> bool: # pylint: disable=unused-argument """ Checks if the request or given credentials are blacklisted from access. """


        if is_client_ip_address_blacklisted(request):
            return True

        return False