old_contents: import os
  from nipype.interfaces.base import (BaseInterface, BaseInterfaceInputSpec, traits,
      InputMultiPath, File, Directory, TraitedSpec)
  from qipipe.staging.fix_dicom import fix_dicom_headers
  
  class FixDicomInputSpec(BaseInterfaceInputSpec):
      collection = traits.Str(desc='The image collection', mandatory=True)
  
      subject = traits.Str(desc='The subject name', mandatory=True)
  
      in_files = InputMultiPath(File(exists=True), desc='The input DICOM files', mandatory=True)
      
  
  class FixDicomOutputSpec(TraitedSpec):
      out_files = traits.List(desc="The modified output files", trait=File, exists=True)
  
  
  class FixDicom(BaseInterface):
      """The FixDicom interface wraps the :meth:`qipipe.staging.fix_dicom.fix_dicom_headers`
      function."""
      
      input_spec = FixDicomInputSpec
      
      output_spec = FixDicomOutputSpec
      
      def _run_interface(self, runtime):
          self._out_files = fix_dicom_headers(self.inputs.collection, self.inputs.subject, *self.inputs.in_files)
          return runtime
  
      def _list_outputs(self):
          outputs = self._outputs().get()
          outputs['out_files'] = self._out_files
          return outputs
  
new_contents: import os
  from nipype.interfaces.base import (BaseInterface, BaseInterfaceInputSpec, traits,
      InputMultiPath, File, Directory, TraitedSpec)
  from qipipe.staging.fix_dicom import fix_dicom_headers
  
  class FixDicomInputSpec(BaseInterfaceInputSpec):
      collection = traits.Str(desc='The image collection', mandatory=True)
  
      subject = traits.Str(desc='The subject name', mandatory=True)
  
      in_file = File(exists=True, desc='The input DICOM file', mandatory=True)
      
  
  class FixDicomOutputSpec(TraitedSpec):
      out_file = File(desc="The modified output file", exists=True)
  
  
  class FixDicom(BaseInterface):
      """The FixDicom interface wraps the :meth:`qipipe.staging.fix_dicom.fix_dicom_headers`
      function."""
      
      input_spec = FixDicomInputSpec
      
      output_spec = FixDicomOutputSpec
      
      def _run_interface(self, runtime):
          self._out_file = fix_dicom_headers(self.inputs.collection, self.inputs.subject, self.inputs.in_file)
          return runtime
  
      def _list_outputs(self):
          outputs = self._outputs().get()
          outputs['out_file'] = self._out_file
          return outputs
  
subject: Fix only one file at a time.