class_docstr: Computes binary confusion matrix.
code: def create_accumulator(self) -> MatrixAccumulator:
      return {}
  
file_path: model-analysis/tensorflow_model_analysis/contrib/aggregates/binary_confusion_matrices.py
imports: from typing import Dict, Iterable, List, NamedTuple, Optional, Sequence
  from tensorflow_model_analysis.experimental.lazytf import api
label_desc: Use image node_id 2 for calling the BinaryConfusionMatrices obj's underlying member method code with example usage: obj.create_accumulator() and returns: dict