code: def _run_interface(self, runtime):
      _, _, ext = split_filename(self.inputs.tensor_file)
      copyfile(
          self.inputs.tensor_file,
          os.path.abspath(
              self.inputs.input_data_prefix + "_tensor" + ext
          ),
          copy=False,
      )
  
      return super()._run_interface(runtime)
  
imports: import os
  import re
  from ...utils.filemanip import fname_presuffix, split_filename, copyfile
  from ..base import TraitedSpec, File, traits, CommandLine, CommandLineInputSpec, isdefined
label_desc: Use image node_id 1 for calling the DTITracker obj's underlying member method code with example usage: obj._run_interface(runtime) and returns: super