class_docstr: Credentials Class Unittest class.
docstr: Test Credentials.reset() with error.
code: def test_Credentials_reset_error(self):
      """Test Credentials.reset() with error."""
      with patch(
          "streamlit.runtime.credentials.os.remove",
          side_effect=OSError("some error"),
      ), patch("streamlit.runtime.credentials.LOGGER") as p:
          Credentials.reset()
          p.error.assert_called_once_with(
              "Error removing credentials file: some error"
          )
  
imports: import os
  import textwrap
  import unittest
  from pathlib import Path
  from unittest.mock import MagicMock, call, mock_open, patch
  import pytest
  import requests_mock
  from testfixtures import tempdir
  from streamlit import file_util
  from streamlit.runtime.credentials import Credentials, _Activation, _verify_email, email_prompt
label_desc: Use image node_id 19 for calling the CredentialsClassTest obj's underlying member method code with example usage: obj.test_Credentials_reset_error() without return types