code: def __iadd__(self, other):
      self.data_list += other.data_list
      self.label_list += other.label_list
      self.label_list_plain += other.label_list_plain
      self.comment_list += other.comment_list
  
file_path: attention-ocr/aocr/util/bucketdata.py
imports: from __future__ import absolute_import
  import numpy
label_desc: Use image node_id 5 for calling the BucketData obj's underlying member method code with example usage: obj.__iadd__(other) without return types