code: def nifti_resave(input_filepath, output_filepath):
      """Copies a file somewhere else. Effectively only used for compressing nifti files.
  
      Parameters
      ----------
      input_filepath: str
          Input filepath.
      output_filepath: str
          Output filepath to be copied to.
  
      """
  
      nib.save(nib.load(input_filepath), output_filepath)
  
imports: import os
  import numpy
  import nibabel
  import nrrd
  import pydicom
  import subprocess
  from collections import defaultdict
  from imageio import imwrite, imread
  from deepneuro.utilities.util import grab_files_recursive, quotes
label_desc: Use image node_id 22 for calling a global function with example usage: nifti_resave(input_filepath, output_filepath) without return types