code: def test_make_LT(self):
      rs = np.random.RandomState(123)
      X = rs.rand(13, 20).astype("float32")
      A = rs.rand(5, 20).astype("float32")
      b = rs.rand(5).astype("float32")
      Yref = X @ A.T + b
      lt = inspect_tools.make_LinearTransform_matrix(A, b)
      Ynew = lt.apply(X)
      np.testing.assert_allclose(Yref, Ynew, rtol=1e-06)
  
imports: import faiss
  import unittest
  import numpy
  import platform
  import os
  import random
  import tempfile
  from faiss.contrib import datasets
  from faiss.contrib import inspect_tools
  from faiss.contrib import evaluation
  from faiss.contrib import ivf_tools
  from faiss.contrib import clustering
  from faiss.contrib import big_batch_search
  from common_faiss_tests import get_dataset_2
label_desc: Use image node_id 3 for calling the TestInspect obj's underlying member method code with example usage: obj.test_make_LT() without return types