code: def test_init_6(self):
      self.assertRaises(
          ValueError,
          ProjectReport,
          self.xpl,
          os.path.join(current_path, "../../data/metadata.yaml"),
          self.df[["x1", "x2"]],
          self.df["y"],
          {"metrics": ["sklearn.metrics.mean_squared_error"]},
      )
  
imports: import unittest
  from unittest.mock import patch
  import os
  import numpy
  import pandas
  import catboost
  from category_encoders import OrdinalEncoder
  from shapash import SmartExplainer
  from shapash.report.project_report import ProjectReport
label_desc: Use image node_id 7 for calling the TestProjectReport obj's underlying member method code with example usage: obj.test_init_6() without return types