add back monai data dir

Signed-off-by: Can-Zhao <[email protected]>

Author: Can-Zhao

generation/maisi/maisi_inference_tutorial.ipynb

@@ -198,9 +198,10 @@
     }
    ],
    "source": [
-    "root_dir = \"./temp_work_dir_inference_demo\"\n",
-    "if not os.path.isdir(root_dir):\n",
-    "    os.makedirs(root_dir)\n",
+    "directory = os.environ.get(\"MONAI_DATA_DIRECTORY\")\n",
+    "if directory is not None:\n",
+    "    os.makedirs(directory, exist_ok=True)\n",
+    "root_dir = tempfile.mkdtemp() if directory is None else directory\n",
     "\n",
     "# TODO: remove the `files` after the files are uploaded to the NGC\n",
     "files = [\n",