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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_correct(self):
 """ Check if this object is correct This function: - checks if the required properties are defined, ignoring special_properties if some exist - logs the previously found warnings and errors :return: True if it's correct, otherwise False :rtype: bool """

        state = self.conf_is_correct
        properties = self.__class__.properties

        for prop, entry in list(properties.items()):
            if hasattr(self, 'special_properties') and prop in getattr(self, 'special_properties'):
                continue
            if not hasattr(self, prop) and entry.required:
                msg = "[%s::%s] %s property is missing" % (self.my_type, self.get_name(), prop)
                self.add_error(msg)

        state = state & self.conf_is_correct
        return state