nova/doc/source/_static/images/resize/resize_revert.dia

seqdiag {
    API; Source; Destination;
    edge_length = 300;
    span_height = 15;
    activation = none;
    default_note_color = white;

    API -> Destination [label = "cast", note = "revert_resize"];
           Source <- Destination [label = "cast", leftnote = "finish_revert_resize"];
}