class_docstr: Re-configure parcellation to be incrementally defined.
  
  Example
  -------
  
  >>> import nipype.interfaces.mrtrix3 as mrt
  >>> labels = mrt.LabelConvert()
  >>> labels.inputs.in_file = 'aparc+aseg.nii'
  >>> labels.inputs.in_config = 'mrtrix3_labelconfig.txt'
  >>> labels.inputs.in_lut = 'FreeSurferColorLUT.txt'
  >>> labels.cmdline
  'labelconvert aparc+aseg.nii FreeSurferColorLUT.txt mrtrix3_labelconfig.txt parcellation.mif'
  >>> labels.run()                                 # doctest: +SKIP
class_docstr_tok: ["Re-configure","parcellation","to","be","incrementally","defined",".","Example","--","--","--","-",">",">",">","import","nipype.interfaces.mrtrix3","as","mrt",">",">",">","labels","=","mrt.LabelConvert","(",")",">",">",">","labels.inputs.in_file","=","'aparc+aseg.nii'",">",">",">","labels.inputs.in_config","=","'mrtrix3_labelconfig.txt'",">",">",">","labels.inputs.in_lut","=","'FreeSurferColorLUT.txt'",">",">",">","labels.cmdline","'labelconvert","aparc+aseg.nii","FreeSurferColorLUT.txt","mrtrix3_labelconfig.txt","parcellation.mif'",">",">",">","labels.run","(",")","#","doctest",":","+SKIP"]
code: def _list_outputs(self):
      outputs = self.output_spec().get()
      outputs["out_file"] = op.abspath(self.inputs.out_file)
      return outputs
  
imports: import os
  import os.path
  from ..base import CommandLineInputSpec, traits, TraitedSpec, File, isdefined
  from .base import MRTrix3Base
label_desc: Use image node_id 2 for calling the LabelConvert obj's underlying member method code with example usage: obj._list_outputs() and returns: outputs