code: def add_normal_label(
      image: np.ndarray, confidence: float | None = None
  ) -> np.ndarray:
      """Adds the normal label to the image."""
      return add_label(image, "normal", (225, 252, 134), confidence)
  
file_path: anomalib/src/anomalib/post_processing/post_process.py
imports: from __future__ import annotations
  import math
  from enum import Enum
  import cv2
  import numpy
  from skimage import morphology
label_desc: Use image node_id 2 for calling a global function with example usage: add_normal_label(image, confidence) and returns: add_label