class_docstr: Use ``transformix`` to apply a transform on an input image.
  The transform is specified in the transform-parameter file.
  
  Example
  -------
  
  >>> from nipype.interfaces.elastix import ApplyWarp
  >>> reg = ApplyWarp()
  >>> reg.inputs.moving_image = 'moving1.nii'
  >>> reg.inputs.transform_file = 'TransformParameters.0.txt'
  >>> reg.cmdline
  'transformix -in moving1.nii -threads 1 -out ./ -tp TransformParameters.0.txt'
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code: def _list_outputs(self):
      outputs = self._outputs().get()
      out_dir = op.abspath(self.inputs.output_path)
      outputs["warped_file"] = op.join(out_dir, "result.nii.gz")
      return outputs
  
imports: import os.path
  import re
  from ...None import logging
  from .base import ElastixBaseInputSpec
  from ..base import CommandLine, TraitedSpec, File, traits, InputMultiPath
label_desc: Use image node_id 1 for calling the ApplyWarp obj's underlying member method code with example usage: obj._list_outputs() and returns: outputs