code: def read_img(self, path):
      img = imageio.imread(path)
      if img.ndim == 2:
          img = np.expand_dims(img, axis=2)
      # som images have 4 channels
      if img.shape[2] > 3:
          img = img[:, :, :3]
      return img
  
imports: import os
  import sys
  import math
  import pickle
  import yaml
  import imageio
  import numpy
  from tqdm import tqdm
  from scipy.spatial import ConvexHull
  import cv2
  import paddle
  from ppgan.utils.download import get_path_from_url
  from ppgan.utils.animate import normalize_kp
  from ppgan.modules.keypoint_detector import KPDetector
  from ppgan.models.generators.occlusion_aware import OcclusionAwareGenerator
  from ppgan.faceutils import face_detection
label_desc: Use image node_id 2 for calling the FirstOrderPredictor obj's underlying member method code with example usage: obj.read_img(path) and returns: img