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

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)