code: def _write_fake_bold_gifti(file_path):
      """Generate a gifti image and write it to disk.
  
      Note this only generates an empty file for now.
  
      Parameters
      ----------
      file_path : :obj:`str`
          Output file path.
  
      Returns
      -------
      file_path : :obj:`str`
          Output file path.
  
      """
      Path(file_path).parent.mkdir(parents=True, exist_ok=True)
      Path(file_path).touch()
      return file_path
  
imports: from __future__ import annotations
  import itertools
  import json
  import string
  from pathlib import Path
  import numpy
  import pandas
  import scipy.linalg
  import scipy.signal
  from nibabel import Nifti1Image
  from scipy.ndimage import binary_dilation
  from nilearn import datasets, image, maskers, masking
  from nilearn._utils import as_ndarray, logger
  from nilearn.interfaces.bids.utils import bids_entities, check_bids_label, create_bids_filename
  from nilearn.interfaces.fmriprep.tests._testing import get_legal_confound
label_desc: Use image node_id 9 for calling a global function with example usage: _write_fake_bold_gifti(file_path) and returns: file_path