    def max_width(self):
        """
        :return: The max width of the rendered text (across all images if an animated renderer).
        """
        if len(self._plain_images) <= 0:
            self._convert_images()

        if self._max_width == 0:
            for image in self._plain_images:
                new_max = max(wcswidth(x) for x in image)
                self._max_width = max(new_max, self._max_width)
        return self._max_width
:return: The max width of the rendered text (across all images if an animated renderer).
asciimatics/renderers/base.py