def fillSlots(self, **slots):
        """
        Remember the slots provided at this position in the DOM.

        During the rendering of children of this node, slots with names in
        C{slots} will be rendered as their corresponding values.

        @return: C{self}. This enables the idiom C{return tag.fillSlots(...)} in
            renderers.
        """
        if self.slotData is None:
            self.slotData = {}
        self.slotData.update(slots)
        return self

        Remember the slots provided at this position in the DOM.

        During the rendering of children of this node, slots with names in
        C{slots} will be rendered as their corresponding values.

        @return: C{self}. This enables the idiom C{return tag.fillSlots(...)} in
            renderers.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/_stan.py