class_docstr: Flip image horizontally.
code: def __init__(self, flip_ratio):
      self.flip_ratio = flip_ratio
  
imports: import random
  import cv2
  import numpy
  import torch
  from scipy import signal
label_desc: Use image node_id 1 to create a new HorizontalFlip object from inherited base classes: object with example: obj = HorizontalFlip(flip_ratio)