code: def test_n_iter_without_progress():
      # Use a dummy negative n_iter_without_progress and check output on stdout
      random_state = check_random_state(0)
      X = random_state.randn(100, 10)
      for method in ["barnes_hut", "exact"]:
          tsne = TSNE(
              n_iter_without_progress=-1,
              verbose=2,
              learning_rate=1e8,
              random_state=0,
              method=method,
              n_iter=351,
              init="random",
          )
          tsne._N_ITER_CHECK = 1
          tsne._EXPLORATION_N_ITER = 0
  
          old_stdout = sys.stdout
          sys.stdout = StringIO()
          try:
              tsne.fit_transform(X)
          finally:
              out = sys.stdout.getvalue()
              sys.stdout.close()
              sys.stdout = old_stdout
  
          # The output needs to contain the value of n_iter_without_progress
          assert (
              "did not make any progress during the last -1 episodes. Finished."
              in out
          )
  
imports: import sys
  from io import StringIO
  import numpy
  import pytest
  import scipy.sparse
  from numpy.testing import assert_allclose
  from scipy.optimize import check_grad
  from scipy.spatial.distance import pdist, squareform
  from sklearn import config_context
  from sklearn.datasets import make_blobs
  from sklearn.exceptions import EfficiencyWarning
  from sklearn.manifold import TSNE, _barnes_hut_tsne
  from sklearn.manifold._t_sne import _gradient_descent, _joint_probabilities, _joint_probabilities_nn, _kl_divergence, _kl_divergence_bh, trustworthiness
  from sklearn.manifold._utils import _binary_search_perplexity
  from sklearn.metrics.pairwise import cosine_distances, manhattan_distances, pairwise_distances
  from sklearn.neighbors import NearestNeighbors, kneighbors_graph
  from sklearn.utils import check_random_state
  from sklearn.utils._testing import assert_almost_equal, assert_array_almost_equal, assert_array_equal, ignore_warnings, skip_if_32bit
  from sklearn.utils.fixes import CSR_CONTAINERS, LIL_CONTAINERS
label_desc: Use image node_id 36 for calling a global function with example usage: test_n_iter_without_progress() without return types