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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 domain_score(self, domains):
 """Calls domain scores endpoint. This method is deprecated since OpenDNS Investigate API endpoint is also deprecated. """

        warn(
            'OpenDNS Domain Scores endpoint is deprecated. Use '
            'InvestigateApi.categorization() instead', DeprecationWarning,
        )
        url_path = 'domains/score/'
        return self._multi_post(url_path, domains)