class_docstr: Coco annotation helper class.
class_docstr_tok: ["Coco","annotation","helper","class","."]
code: def __init__(self, annotation_path):
      with epath.Path(annotation_path).open() as f:
          data = json.load(f)
      self._data = data
  
imports: from __future__ import annotations
  import collections
  import json
  import os
  from absl import logging
  from etils import epath
  import numpy
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 to create a new CocoAnnotation object from inherited base classes: object with example: obj = CocoAnnotation(annotation_path)