code: def rank(A, eps):
      S = np.linalg.svd(A, compute_uv=False)
      try:
          rank = np.nonzero(S < eps)[0][0]
      except IndexError:
          rank = A.shape[0]
      return rank
  
imports: import scipy.linalg.interpolative
  import numpy
  from scipy.linalg import hilbert, svdvals, norm
  from scipy.sparse.linalg import aslinearoperator
  from scipy.linalg.interpolative import interp_decomp
  from numpy.testing import assert_, assert_allclose, assert_equal, assert_array_equal
  import pytest
  from pytest import raises
  import sys
label_desc: Use image node_id 4 for calling a global function with example usage: rank(A, eps) and returns: rank