code: def test_place_values_at_indices(self):
      values = torch.tensor([3, 7, 11], dtype=torch.float)
      idxs = [2, 3, 5]
      len_ = 7
      result = place_values_at_indices(values, idxs, len_)
      expected_result = torch.Tensor([0, 0, 3, 7, 0, 11, 0])
      npt.assert_array_equal(result.numpy(), expected_result.numpy())
  
imports: import unittest
  from io import BytesIO
  from itertools import cycle
  from unittest import mock
  import numpy
  import numpy.testing
  import torch
  from parameterized.parameterized import parameterized
  from pytorch_lightning import seed_everything
  from reagent.mab.mab_algorithm import get_arm_indices, place_values_at_indices, randomized_argmax, reindex_multiple_tensors
  from reagent.mab.simulation import BernoilliMAB, compare_bandit_algos, multiple_evaluations_bandit_algo, single_evaluation_bandit_algo
  from reagent.mab.thompson_sampling import BaseThompsonSampling, BernoulliBetaThompson, NormalGammaThompson
  from reagent.mab.ucb import BaseUCB, MetricUCB, UCB1, UCBTuned
label_desc: Use image node_id 4 for calling the TestMAButils obj's underlying member method code with example usage: obj.test_place_values_at_indices() without return types