code: def test_normpath():
      assert fs.normpath("////home") == "/home"
      assert fs.normpath("memory:////home") == "memory:////home"
  
file_path: pytorch_geometric/test/io/test_fs.py
imports: import zipfile
  from os import path
  import fsspec
  import pytest
  import torch
  import torch_geometric.typing
  from torch_geometric.data import extract_zip
  from torch_geometric.io import fs
  from torch_geometric.testing import noWindows
label_desc: Use image node_id 3 for calling a global function with example usage: test_normpath() without return types