content: import os.path as osp
  from .utils.elev_est_api import elev_est_api
  
  def estimate_elev(root_dir):
      img_dir = osp.join(root_dir, "stage2_8")
      img_paths = []
      for i in range(4):
          img_paths.append(f"{img_dir}/0_{i}.png")
      elev = elev_est_api(img_paths)
      return elev
  