class_docstr: Property of BBoxClipToImage custom Op.
  
  Parameters
  ----------
  axis : int
      The coordinate axis with length 4.
code: def __init__(self, axis=-1):
      super(BBoxClipToImageProp, self).__init__(need_top_grad=True)
      self.axis = int(axis)
  
file_path: gluon-cv/gluoncv/model_zoo/rcnn/rpn/bbox_clip.py
imports: import mxnet
label_desc: Use image node_id 1 to create a new BBoxClipToImageProp object from inherited base classes: mx.operator with example: obj = BBoxClipToImageProp(axis)