class_docstr: Representation of image license information.
class_docstr_tok: ["Representation","of","image","license","information","."]
code: def get_attribution_message(self):
      return (
          f"This image was originally under the license *{self._image_license}"
          f"({self._image_license_url})* by user *{self._username}*. "
          f"The original image link is *{self._image_url}*."
      )
  
imports: import base64
  import io
  from typing import Dict, Union
  import PIL
  import torch
  from parlai.core.image_featurizers import ImageLoader
  from parlai.core.opt import Opt
  from parlai.core.params import ParlaiParser
  from parlai.utils.typing import TShared
label_desc: Use image node_id 6 for calling the ImageLicense obj's underlying member method code with example usage: obj.get_attribution_message() and returns: str, self, str, self, str, self, str, self, str