update callbacks code for #3549

            report_exception(c, 'ui_settings_callback')

def image_saved_callback(image, p, fullfn, txt_fullfn):

    for c in callbacks_image_saved:

        try:

            c.callback(image, p, fullfn, txt_fullfn)

        except Exception:

            report_exception(c, 'image_saved_callback')

def add_callback(callbacks, fun):

    stack = [x for x in inspect.stack() if x.filename != __file__]

    filename = stack[0].filename if len(stack) > 0 else 'unknown file'

    callbacks.append(ScriptCallback(filename, fun))

def image_saved_callback(image, p, fullfn, txt_fullfn):

    for callback in callbacks_image_saved:

        callback(image, p, fullfn, txt_fullfn)

def on_model_loaded(callback):

    """register a function to be called when the stable diffusion model is created; the model is

def on_ui_settings(callback):

    """register a function to be called before UI settings are populated; add your settings

    by using shared.opts.add_option(shared.OptionInfo(...)) """

    callbacks_ui_settings.append(callback)

    add_callback(callbacks_ui_settings, callback)

def on_save_imaged(callback):

    """register a function to call after modules.images.save_image is called returning same values, original image and p """

    callbacks_image_saved.append(callback)

    """register a function to be called after modules.images.save_image is called.

    The callback is called with three arguments:

        - p - procesing object (or a dummy object with same fields if the image is saved using save button)

        - fullfn - image filename

        - txt_fullfn - text file with parameters; may be None

    """

    add_callback(callbacks_image_saved, callback)