class_docstr: Test cases for wandb interface class.
docstr: Test initialization with no wandb credentials.
docstr_tok: ["Test","initialization","with","no","wandb","credentials","."]
code: def test_init_wandb_disabled(self):
      """Test initialization with no wandb credentials."""
      mock_wandb_run = Mock()
      with patch(
          "skll.utils.wandb.wandb.init", return_value=mock_wandb_run
      ) as mock_wandb_init:
          WandbLogger({})
          mock_wandb_init.assert_not_called()
  
file_path: skll/tests/test_wandb.py
imports: import unittest
  from unittest.mock import Mock, patch
  from skll.utils.wandb import WandbLogger
label_desc: Use image node_id 2 for calling the TestWandb obj's underlying member method code with example usage: obj.test_init_wandb_disabled() without return types