old_contents: from smurff import smurff
  import scipy.io
  
  train_matrix_path = "chembl-IC50-346targets.mm"
  test_matrix_path = "chembl-IC50-test.mm"
  
  train = scipy.io.mmread(train_matrix_path)
  test = scipy.io.mmread(test_matrix_path)
  result = smurff(train, test, num_latent = 1, burnin=1, nsamples=5)
  print(result.predictions[0])
  
new_contents: from smurff import smurff
  import scipy.io
  
  train_matrix_path = "chembl-IC50-346targets.mm"
  test_matrix_path = "chembl-IC50-test.mm"
  
  train = scipy.io.mmread(train_matrix_path)
  test = scipy.io.mmread(test_matrix_path)
  result = smurff(train, test, side=[('normal', []), ('normal', [])], num_latent = 1, burnin=1, nsamples=5)
  print(result.predictions[0])
  
subject: Update smurff-mm.py example to use new side info argument