code: def test_reconst_dti_nlls():
      reconst_flow_core(ReconstDtiFlow, extra_args=[], extra_kwargs={})
  
file_path: dipy/dipy/workflows/tests/test_reconst_dti.py
imports: from os.path import join
  from tempfile import TemporaryDirectory
  import numpy
  from numpy.testing import assert_equal
  from dipy.data import get_fnames
  from dipy.io.image import load_nifti_data, load_nifti, save_nifti
  from dipy.workflows.reconst import ReconstDtiFlow
label_desc: Use image node_id 2 for calling a global function with example usage: test_reconst_dti_nlls() without return types