class_docstr: Accumulator for privacy id count aggregation.
  
  Should be constructed per (privacy_key, privacy_id)
  
  Attributes:
    count: The count of privacy ids in input values.
code: def __init__(self, values: Sequence[Any]):
      self.count = 1
  
imports: import abc
  from typing import Any, List, Sequence
  import pipeline_dp
label_desc: Use image node_id 1 to create a new PrivacyIdCountAccumulator object from inherited base classes: pipeline_dp.accumulator with example: obj = PrivacyIdCountAccumulator(values)