class_docstr: Create a hook on `m` with `hook_func`.
class_docstr_tok: ["Create","a","hook","on","`","m","`","with","`","hook_func","`","."]
code: def __init__(self, m, hook_func, is_forward=True, detach=True):
      self.hook_func, self.detach, self.stored = hook_func, detach, None
      f = (
          m.register_forward_post_hook
          if is_forward
          else m.register_backward_hook
      )
      self.hook = f(self.hook_fn)
      self.removed = False
  
imports: import base64
  import os
  import sys
  import cv2
  import numpy
  import paddle
  import paddle.nn
  from PIL import Image
label_desc: Use image node_id 1 to create a new Hook object  with example: obj = Hook(m, hook_func, is_forward, detach)