code: def move_to_output_dir(work_dir, output_dir, uuid=None, files=list()):
      
      for fname in files:
          if uuid is None:
              shutil.move(os.path.join(work_dir, fname), os.path.join(output_dir, fname))
          else:
              shutil.move(os.path.join(work_dir, fname), os.path.join(output_dir, '{}.{}'.format(uuid, fname)))
docs: Moves files from work_dir to output_dir
  
      Input1: Working directory
      Input2: Output directory
      Input3: UUID to be preprended onto file name
      Input4: list of file names to be moved from working dir to output dir