code: def __repr__(self):
      return f"<DFT {self.fname!r}>"
  
imports: import contextlib
  import getpass
  import logging
  import os
  import sqlite3
  import tempfile
  import warnings
  from io import BytesIO
  from os.path import join
  import numpy
  from nibabel.optpkg import optional_package
  from .nifti1 import Nifti1Header
label_desc: Use image node_id 4 for calling the _DB obj's underlying member method code with example usage: obj.__repr__() and returns: str, self, str