Add callbacks and param objects

        """dictionary with parameters for image's PNG info data; infotext will have the key 'parameters'"""

class CGFDenoiserParams:

    def __init__(self, x_in, image_cond_in, sigma_in, sampling_step, total_sampling_steps):

        self.x_in = x_in

        self.image_cond_in = image_cond_in

        self.sigma_in = sigma_in

        self.sampling_step = sampling_step

        self.total_sampling_steps = total_sampling_steps

ScriptCallback = namedtuple("ScriptCallback", ["script", "callback"])

callbacks_model_loaded = []

callbacks_ui_tabs = []

callbacks_ui_settings = []

callbacks_before_image_saved = []

callbacks_image_saved = []

callbacks_cfg_denoiser = []

def clear_callbacks():

            report_exception(c, 'image_saved_callback')

def cfg_denoiser_callback(params: CGFDenoiserParams):

    for c in callbacks_cfg_denoiser:

        try:

            c.callback(params)

        except Exception:

            report_exception(c, 'cfg_denoiser_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'

        - params: ImageSaveParams - parameters the image was saved with. Changing fields in this object does nothing.

    """

    add_callback(callbacks_image_saved, callback)

def on_cfg_denoiser(callback):

    """register a function to be called in the kdiffussion cfg_denoiser method after building the inner model inputs.

    The callback is called with one argument:

        - params: CGFDenoiserParams - parameters to be passed to the inner model and sampling state details.

    """

    add_callback(callbacks_cfg_denoiser, callback)