code: def DbDeleteAttributeAlias(self, argin):
          
          self._log.debug("In DbDeleteAttributeAlias()")
          self.db.delete_attribute_alias(argin)
docs: Delete an attribute alias.
  
          :param argin: Attriibute alias name.
          :type: tango.DevString
          :return:
          :rtype: tango.DevVoid