new_contents: """
  Test the nifti_masker module
  """
  import numpy as np
  
  from nibabel import Nifti1Image
  
  from ..nifti_masker import NiftiMasker
  
  def test_auto_mask():
      data = np.ones((9, 9, 9))
      data[3:-3, 3:-3, 3:-3] = 10
      img = Nifti1Image(data, np.eye(4))
      masker = NiftiMasker()
      masker.fit(img)
  
  
subject: add tests for nifti masker