class_docstr: Helper class to store data about images generated by attacks.
docstr: Returns information about image based on it's filename.
docstr_tok: ["Returns","information","about","image","based","on","it","'s","filename","."]
code: def image_by_base_filename(self, filename):
      """Returns information about image based on it's filename."""
      return self._output_to_attack_mapping[filename]
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import csv
  import json
  import os
  import subprocess
  import numpy
  from PIL import Image
label_desc: Use image node_id 9 for calling the AttacksOutput obj's underlying member method code with example usage: obj.image_by_base_filename(filename) and returns: self