code: def test_linreg_int_idx(
      precalculated_linear_regression_explainer, test_names
  ):
      assert (
          precalculated_linear_regression_explainer.get_idx(
              test_names[0]
          )
          == 0
      )
  
imports: import pytest
  import pandas
  import numpy
  import shap
  import plotly.graph_objects
label_desc: Use image node_id 2 for calling a global function with example usage: test_linreg_int_idx(precalculated_linear_regression_explainer, test_names) without return types