code: def i_update(self, targets, positions):
      for name, value in targets.items():
          self._data[name].i_update(value, positions)
      return self
  
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 4 for calling the HistogramValuesContainer obj's underlying member method code with example usage: obj.i_update(targets, positions) and returns: self