code: def i_cumsum_bins(self, intervals: list):
      for name, values in self._data.items():
          values.i_chunking_cumsum(intervals)
  
imports: import typing
  from typing import MutableMapping
  from ._value import HistogramValues
  from ._plain import HistogramPlainValues
  from ._cipher import HistogramEncryptedValues
label_desc: Use image node_id 14 for calling the HistogramValuesContainer obj's underlying member method code with example usage: obj.i_cumsum_bins(intervals) without return types