class_docstr: Basic Reader Class
class_docstr_tok: ["Basic","Reader","Class"]
code: def _load(self, key):
      # return path
      video = skvideo.io.vread(self.index_dict[key])
      v = self.video_face_crop(video)
      v = self.transform_to_gray(v)
      v = self.extract_feature(v)
      return v
  
imports: import cvtransforms
  import face_alignment
  import numpy
  import skimage.transform
  import skvideo.io
  import torch
  from models import pretrained
label_desc: Use image node_id 5 for calling the VideoReader obj's underlying member method code with example usage: obj._load(key) and returns: v