code: def update_y(self, y) -> None:
      self._y = y
      self.y_sum_cache_up_to_date = False
  
imports: from operator import gt, le
  from typing import Any, List, Optional, Union
  import numpy
  import pandas
  from .errors import NoSplittableVariableException
  from .splitcondition import SplitCondition
label_desc: Use image node_id 7 for calling the Target obj's underlying member method code with example usage: obj.update_y(y) without return types