docstr: Print information about the annotation file.
  :return:
docstr_tok: ["Print","information","about","the","annotation","file",".",":","return",":"]
code: def info(self):
      """
      Print information about the annotation file.
      :return:
      """
      for key, value in self.dataset["info"].items():
          print("{}: {}".format(key, value))
  
imports: import json
  import time
  import matplotlib.pyplot
  from matplotlib.collections import PatchCollection
  from matplotlib.patches import Polygon
  import numpy
  import copy
  import itertools
  from pycocotools import mask
  import os
  from collections import defaultdict
  import sys
label_desc: Use image node_id 3 for calling the COCO obj's underlying member method code with example usage: obj.info() without return types