code: def create_parfiles():
      np.savetxt("a.par", np.random.rand(6, 3))
      np.savetxt("b.par", np.random.rand(6, 3))
      return ["a.par", "b.par"]
  
file_path: nipype/nipype/interfaces/fsl/tests/test_utils.py
imports: import os
  import numpy
  import nibabel
  import pytest
  import nipype.interfaces.fsl.utils
  from nipype.interfaces.fsl import no_fsl, Info
  from nipype.testing.fixtures import create_files_in_directory_plus_output_type
label_desc: Use image node_id 6 for calling a global function with example usage: create_parfiles() and returns: list