code: def extend_mask(self, im, mask):
      # closed_mask = binary_dilation(mask.pixels[0].astype(np.bool), disk(10))
      # extended_mask = ((np.sum(im.pixels, 0) == 0) & (closed_mask & ~mask.pixels[0].astype(np.bool))) | mask.pixels[0].astype(np.bool)
      # im_filled = remove_small_holes(np.sum(im.pixels, 0) > 0, area_threshold=1000)
      # border = binary_dilation(im_filled, disk(10)) & ~binary_erosion(im_filled, disk(10))
      return mask
  
imports: from utils.align2stylegan import align_im2stylegan, align_mesh2stylegan
  from core.projection_handler import Projection_Handler
  from skimage.morphology import remove_small_holes
  import time
  from utils.ganfit_camera import apply_camera_only3d, get_pose
  from utils.utils import *
  from core.arcface_handler import Arcface_Handler
  from utils import generate_heatmap
label_desc: Use image node_id 9 for calling the Operator obj's underlying member method code with example usage: obj.extend_mask(im, mask) and returns: mask