code: def test_fsspec_url(naturalearth_lowres):
      fsspec = pytest.importorskip("fsspec")
      import fsspec.implementations.memory
  
      class MyMemoryFileSystem(
          fsspec.implementations.memory.MemoryFileSystem
      ):
          # Simple fsspec filesystem that adds a required keyword.
          # Attempting to use this filesystem without the keyword will raise an exception.
          def __init__(self, is_set, *args, **kwargs):
              self.is_set = is_set
              super().__init__(*args, **kwargs)
  
      fsspec.register_implementation(
          "memory", MyMemoryFileSystem, clobber=True
      )
      memfs = MyMemoryFileSystem(is_set=True)
  
      df = read_file(naturalearth_lowres)
  
      with memfs.open("data.parquet", "wb") as f:
          df.to_parquet(f)
  
      result = read_parquet(
          "memory://data.parquet", storage_options={"is_set": True}
      )
      assert_geodataframe_equal(result, df)
  
      result = read_parquet("memory://data.parquet", filesystem=memfs)
      assert_geodataframe_equal(result, df)
  
      # reset fsspec registry
      fsspec.register_implementation(
          "memory",
          fsspec.implementations.memory.MemoryFileSystem,
          clobber=True,
      )
  
imports: from __future__ import absolute_import
  from itertools import product
  import json
  from packaging.version import Version
  import os
  import pathlib
  import pytest
  from pandas import DataFrame, read_parquet
  from pandas.testing import assert_frame_equal
  import numpy
  import pyproj
  from shapely.geometry import box, Point, MultiPolygon
  import geopandas
  from geopandas import GeoDataFrame, read_file, read_parquet, read_feather
  from geopandas.array import to_wkb
  from geopandas.io.arrow import SUPPORTED_VERSIONS, _create_metadata, _decode_metadata, _encode_metadata, _geopandas_to_arrow, _get_filesystem_path, _remove_id_from_member_of_ensembles, _validate_dataframe, _validate_metadata, METADATA_VERSION
  from geopandas.testing import assert_geodataframe_equal, assert_geoseries_equal
  from geopandas.tests.util import mock
label_desc: Use image node_id 29 for calling a global function with example usage: test_fsspec_url(naturalearth_lowres) without return types