Transforms the translatable string into an actual string and put it
        inside a RawText.

async def become(self, layer_type: Type[L], request: 'Request'):
        """
        Transforms the translatable string into an actual string and put it
        inside a RawText.
        """
        if layer_type != RawText:
            super(Text, self).become(layer_type, request)

        return RawText(await render(self.text, request))