docs: def _draw_outer_connector(context, width, height):
          """Draw the outer connector for container states
  
          Connector for container states can be connected from the inside and the outside. Thus the connector is split
          in two parts: A rectangle on the inside and an arrow on the outside. This method draws the outer arrow.
  
          :param context: Cairo context
          :param float port_size: The side length of the port
          """
          c = context
          # Current pos is center
          # Arrow is drawn upright
  
          arrow_height = height / 2.5
          gap = height / 6.
          connector_height = (height - gap) / 2.
  
          # Move to bottom left corner of outer connector
          c.rel_move_to(-width / 2., -gap / 2.)
  
          # Draw line to bottom right corner
          c.rel_line_to(width, 0)
          # Draw line to upper right corner
          c.rel_line_to(0, -(connector_height - arrow_height))
          # Draw line to center top (arrow)
          c.rel_line_to(-width / 2., -arrow_height)
          # Draw line to upper left corner
          c.rel_line_to(-width / 2., arrow_height)
          # Draw line back to the origin (lower left corner)
          c.close_path()