code: def child(self, name=None, **attrs):
          
  
          sub_query = build_query(name, **attrs)
          query = ('/', (self.query, sub_query))
          obj = UIObjectProxy(self.poco)
          obj.query = query
          return obj
docs: Select the direct child(ren) from the UI element(s) given by the query expression, see ``QueryCondition`` for
          more details about the selectors.
  
          Args:
              name: query expression of attribute "name", i.e. the UI elements with ``name`` name will be selected
              attrs: other query expression except for the ``name``
  
          Returns:
              :py:class:`UIObjectProxy <poco.proxy.UIObjectProxy>`: a new UI proxy object representing the child(ren) of
              current UI element(s)