docs: def create(self):
          """Renders the chart to an OmniCanvas `canvas <https://omnicanvas.readt\
          hedocs.io/en/latest/api/canvas.html#omnicanvas.canvas.Canvas>`_. This
          object can then be `saved <https://omnicanvas.readthedocs.io/en/latest/\
          api/canvas.html#omnicanvas.canvas.Canvas.save>`_ or `rendered <https://\
          omnicanvas.readthedocs.io/en/latest/api/canvas.html#omnicanvas.canvas.C\
          anvas.render>`_ as SVG."""
  
          canvas = Canvas(self.width(), self.height())
          canvas.add_text(
           self.width() / 2, 0, self.title(),
           vertical_align="bottom", name="title"
          )
          return canvas