code: def _gen_outfilename(self):
      _, name, _ = split_filename(self.inputs.in_file)
      return name + ".Bfloat"
  
imports: import os
  from ...utils.filemanip import split_filename
  from ..base import CommandLineInputSpec, CommandLine, traits, TraitedSpec, File
label_desc: Use image node_id 3 for calling the Trackvis2Camino obj's underlying member method code with example usage: obj._gen_outfilename() and returns: unknown