class_docstr: Computes example count.
class_docstr_tok: ["Computes","example","count","."]
code: def merge_accumulators(self, accumulators: Iterable[float]) -> float:
      result = 0.0
      for accumulator in accumulators:
          result += accumulator
      return result
  
file_path: model-analysis/tensorflow_model_analysis/metrics/example_count.py
imports: from typing import Optional, Dict, Iterable, List
  import apache_beam
  import numpy
  from tensorflow_model_analysis import constants
  from tensorflow_model_analysis.metrics import metric_types
  from tensorflow_model_analysis.utils import util
label_desc: Use image node_id 4 for calling the _ExampleCountCombiner obj's underlying member method code with example usage: obj.merge_accumulators(accumulators) and returns: result