code: def set_dtype(dtype):
      """Set the  dtype to use during estimation.
  
      Parameters
      ----------
      dtype : object
          numpy dtype
      """
      global _DTYPE
      _DTYPE = dtype
  
imports: from __future__ import print_function
  import os
  import sys
  import shutil
  import tempfile
  import warnings
  import sysconfig
  import subprocess
  from multiprocessing import current_process
  import numpy
label_desc: Use image node_id 9 for calling a global function with example usage: set_dtype(dtype) without return types