code: def get_dicom_pixel_array(dicom, filename):
      return dicom.pixel_array
  
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 3 for calling a global function with example usage: get_dicom_pixel_array(dicom, filename) and returns: dicom