class_docstr: Element-wise weighted sum of input arrays.
code: def __init__(self, weights):
      self.weights = weights
  
file_path: chainerrl/chainerrl/functions/weighted_sum_arrays.py
imports: from chainer import cuda
  from chainer import function
  from chainer import utils
  from chainer.utils import type_check
label_desc: Use image node_id 1 to create a new WeightedSumArrays object from inherited base classes: function with example: obj = WeightedSumArrays(weights)