`.Rectangle` patch:

            %(Rectangle:kwdoc)s

        Returns
        -------
        rectangle_patch : `.patches.Rectangle`
             The indicator frame.

        connector_lines : 4-tuple of `.patches.ConnectionPatch`
            The four connector lines connecting to (lower_left, upper_left,
            lower_right upper_right) corners of *inset_ax*. Two lines are
            set with visibility to *False*,  but the user can set the
            visibility to True if the automatic choice is not deemed correct.

        Nr/