code: def set_download_dir(path):
      """
      Set the download location for datasets
  
      Parameters
      ----------
      path : String
          Location used to store datafiles
      """
      if path is None:
          default_download_dir.reset()
      else:
          default_download_dir.path = path
  
imports: import cudf
  import dask_cudf
  import yaml
  import os
  import pandas
  import cugraph.dask
  from pathlib import Path
  import urllib.request
  from cugraph.structure.graph_classes import Graph
label_desc: Use image node_id 2 for calling a global function with example usage: set_download_dir(path) without return types