code: def test_mlab_init():
      default_script_file = (
          clean_workspace_and_get_default_script_file()
      )
  
      assert mlab.MatlabCommand._cmd == "matlab"
      assert mlab.MatlabCommand.input_spec == mlab.MatlabInputSpec
  
      assert mlab.MatlabCommand().cmd == matlab_cmd
      mc = mlab.MatlabCommand(matlab_cmd="foo_m")
      assert mc.cmd == "foo_m"
  
file_path: nipype/nipype/interfaces/tests/test_matlab.py
imports: import os
  import pytest
  import nipype.interfaces.matlab
label_desc: Use image node_id 4 for calling a global function with example usage: test_mlab_init() without return types