code: def test_is_fsspec_url():
      assert icom.is_fsspec_url("gcs://pandas/somethingelse.com")
      assert icom.is_fsspec_url("gs://pandas/somethingelse.com")
      # the following is the only remote URL that is handled without fsspec
      assert not icom.is_fsspec_url("http://pandas/somethingelse.com")
      assert not icom.is_fsspec_url("random:pandas/somethingelse.com")
      assert not icom.is_fsspec_url("/local/path")
      assert not icom.is_fsspec_url("relative/local/path")
      # fsspec URL in string should not be recognized
      assert not icom.is_fsspec_url("this is not fsspec://url")
      assert not icom.is_fsspec_url(
          "{'url': 'gs://pandas/somethingelse.com'}"
      )
      # accept everything that conforms to RFC 3986 schema
      assert icom.is_fsspec_url("RFC-3986+compliant.spec://something")
  
imports: import codecs
  import errno
  from functools import partial
  from io import BytesIO, StringIO, UnsupportedOperation
  import mmap
  import os
  from pathlib import Path
  import pickle
  import tempfile
  import numpy
  import pytest
  from pandas.compat import is_platform_windows
  import pandas.util._test_decorators
  import pandas
  import pandas._testing
  import pandas.io.common
label_desc: Use image node_id 2 for calling a global function with example usage: test_is_fsspec_url() without return types