def child(self, name=None, **attrs):
        """
        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)
        """

        sub_query = build_query(name, **attrs)
        query = ('/', (self.query, sub_query))
        obj = UIObjectProxy(self.poco)
        obj.query = query
        return obj
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)