craftutils.observation.epoch.ImagingEpoch.frame_class.plot_subimage(centre: SkyCoord | None = None, frame: Quantity | None = None, corners: tuple[SkyCoord] | None = None, ext: int = 0, fig: Figure | None = None, ax: Axes | None = None, n: int = 1, n_x: int = 1, n_y: int = 1, show_grid: bool = False, show_coords: bool = True, imshow_kwargs: dict | None = None, normalize_kwargs: dict | None = None, output_path: str | None = None, mask: ndarray | None = None, scale_bar_object: Extragalactic | None = None, scale_bar_kwargs: dict | None = None, data: str = 'image', clip_data: bool = False, astm_crosshairs: bool = False, astm_kwargs={}, save_kwargs={}, **kwargs) → tuple[Figure, Axes, dict]