code: def __init__(self):
      self.num_class = 51
      self.classes = [
          "brush_hair",
          "cartwheel",
          "catch",
          "chew",
          "clap",
          "climb",
          "climb_stairs",
          "dive",
          "draw_sword",
          "dribble",
          "drink",
          "eat",
          "fall_floor",
          "fencing",
          "flic_flac",
          "golf",
          "handstand",
          "hit",
          "hug",
          "jump",
          "kick",
          "kick_ball",
          "kiss",
          "laugh",
          "pick",
          "pour",
          "pullup",
          "punch",
          "push",
          "pushup",
          "ride_bike",
          "ride_horse",
          "run",
          "shake_hands",
          "shoot_ball",
          "shoot_bow",
          "shoot_gun",
          "sit",
          "situp",
          "smile",
          "smoke",
          "somersault",
          "stand",
          "swing_baseball",
          "sword",
          "sword_exercise",
          "talk",
          "throw",
          "turn",
          "walk",
          "wave",
      ]
  
imports: import os
  from ..video_custom import VideoClsCustom
label_desc: Use image node_id 1 to create a new HMDB51Attr object from inherited base classes: object with example: obj = HMDB51Attr()