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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_safe(self):
 """ Check if the option is safe. :rtype : bool :return: True, if option is safe """

        if self._number == defines.OptionRegistry.URI_HOST.number \
                or self._number == defines.OptionRegistry.URI_PORT.number \
                or self._number == defines.OptionRegistry.URI_PATH.number \
                or self._number == defines.OptionRegistry.MAX_AGE.number \
                or self._number == defines.OptionRegistry.URI_QUERY.number \
                or self._number == defines.OptionRegistry.PROXY_URI.number \
                or self._number == defines.OptionRegistry.PROXY_SCHEME.number:
            return False
        return True