class_docstr: Query statistics accumulator.
class_docstr_tok: ["Query","statistics","accumulator","."]
code: def __init__(self):
      self.total_queries = 0.0
      self.total_documents = 0.0
      self.min_documents = float("inf")
      self.max_documents = 0.0
  
file_path: model-analysis/tensorflow_model_analysis/metrics/query_statistics.py
imports: from typing import Dict, Iterable, Optional
  import apache_beam
  from tensorflow_model_analysis.metrics import metric_types
  from tensorflow_model_analysis.metrics import metric_util
  from tensorflow_model_analysis.proto import config_pb2
label_desc: Use image node_id 1 to create a new _QueryStatisticsAccumulator object  with example: obj = _QueryStatisticsAccumulator()