code: def register_filesystem(name: str, fs):
      _filesystems[name] = fs
  
file_path: mars/mars/lib/filesystem/core.py
imports: import glob
  import os
  from typing import Dict, List
  from urllib.parse import urlparse
  from ..compression import compress
  from .base import path_type, FileSystem
  from .local import LocalFileSystem
  from .oss import OSSFileSystem
label_desc: Use image node_id 1 for calling a global function with example usage: register_filesystem(name, fs) without return types