code: def test_load_file_invalid(self):
      with pytest.raises(xgb.core.XGBoostError):
          xgb.Booster(model_file="incorrect_path")
  
      with pytest.raises(xgb.core.XGBoostError):
          xgb.Booster(model_file="不正なパス")
  
imports: import json
  import os
  import pathlib
  import tempfile
  from pathlib import Path
  import numpy
  import pytest
  import xgboost
  from xgboost import testing
label_desc: Use image node_id 7 for calling the TestBasic obj's underlying member method code with example usage: obj.test_load_file_invalid() without return types