    def _draw_lines_internal(self, coords, colour, bg):
        """Helper to draw lines connecting a set of nodes that are scaled for the Screen."""
        for i, (x, y) in enumerate(coords):
            if i == 0:
                self._screen.move(x, y)
            else:
                self._screen.draw(x, y, colour=colour, bg=bg, thin=True)
Helper to draw lines connecting a set of nodes that are scaled for the Screen.
samples/maps.py