class_docstr: Randomly flip an image horizontally and/or vertically with
  some probability.
  
  :param h: (bool):
      whether to horizontally flip w/ probability p
  :param v: (bool):
      whether to vertically flip w/ probability p
  :param p: (float between [0,1]):
      probability with which to apply allowed flipping operations
code: def __init__(self, h=True, v=False, p=0.5):
      self.horizontal = h
      self.vertical = v
      self.p = p
  
imports: import os
  import random
  import math
  import numpy
  import torch
label_desc: Use image node_id 1 to create a new RandomFlip object  with example: obj = RandomFlip(h, v, p)