code: def test_verbosity():
      """Check that nonzero verbosity level code runs."""
      rnd = np.random.RandomState(0)
      X = rnd.standard_normal((10, 10))
      A = X @ X.T
      Q = rnd.standard_normal((X.shape[0], 1))
      msg = "Exited at iteration.*|Exited postprocessing with accuracies.*"
      with pytest.warns(UserWarning, match=msg):
          _, _ = lobpcg(A, Q, maxiter=3, verbosityLevel=9)
  
imports: import itertools
  import platform
  import sys
  import pytest
  import numpy
  from numpy import ones, r_, diag
  from numpy.testing import assert_almost_equal, assert_equal, assert_allclose, assert_array_less
  from scipy import sparse
  from scipy.linalg import eig, eigh, toeplitz, orth
  from scipy.sparse import spdiags, diags, eye, csr_matrix
  from scipy.sparse.linalg import eigs, LinearOperator
  from scipy.sparse.linalg._eigen.lobpcg import lobpcg
  from scipy.sparse.linalg._eigen.lobpcg.lobpcg import _b_orthonormalize
  from scipy._lib._util import np_long, np_ulong
label_desc: Use image node_id 20 for calling a global function with example usage: test_verbosity() without return types