code: def test_probably_relative_url() -> None:
      assert bsa.probably_relative_url("httpabc")
      assert bsa.probably_relative_url("httpsabc")
      assert bsa.probably_relative_url("/abc")
      assert not bsa.probably_relative_url("http://abc")
      assert not bsa.probably_relative_url("https://abc")
      assert not bsa.probably_relative_url("//abc")
  
imports: from __future__ import annotations
  import pytest
  from types import ModuleType
  from tornado.web import RequestHandler
  from tests.support.util.api import verify_all
  from tests.support.util.filesystem import with_file_contents, with_file_contents_async
  import bokeh.server.auth_provider
label_desc: Use image node_id 3 for calling a global function with example usage: test_probably_relative_url() without return types