code: def test_base_session_get_credential_options_notimpl():
      """Session.get_credential_options must be overridden"""
      assert Session().get_credential_options() is NotImplemented
  
imports: from unittest import mock
  import pytest
  from fiona.session import DummySession, AWSSession, Session, OSSSession, GSSession, SwiftSession, AzureSession
label_desc: Use image node_id 2 for calling a global function with example usage: test_base_session_get_credential_options_notimpl() without return types