code: def set_attribute_id(self, el, objid):
          '''set id attribute
          Paramters:
              el -- MessageInterface representing the element
              objid -- ID type, unique id
          '''
          if self.unique is False:
              el.setAttributeNS(None, 'id', "%s" %objidf set_attribute_id(self, el, objid):
          '''set id attribute
          Paramters:
              el -- MessageInterface representing the element
              objid -- ID type, unique id
          '''
          if self.unique is False:
              el.setAttributeNS(None, 'id', "%s" %objid)
docs: set id attribute
          Paramters:
              el -- MessageInterface representing the element
              objid -- ID type, unique id