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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 DbGetAttributeAlias(self, argin):
 """ Get the attribute name for the given alias. If alias not found in database, returns an empty string. :param argin: The attribute alias name :type: tango.DevString :return: The attribute name (device/attribute) :rtype: tango.DevString """

        self._log.debug("In DbGetAttributeAlias()")
        return self.db.get_attribute_alias(argin)