code: def test_logreg_pred_percentiles(
      precalculated_logistic_regression_explainer,
  ):
      assert isinstance(
          precalculated_logistic_regression_explainer.pred_percentiles(),
          np.ndarray,
      )
  
imports: import pytest
  import pandas
  import numpy
  import shap
  import plotly.graph_objects
label_desc: Use image node_id 18 for calling a global function with example usage: test_logreg_pred_percentiles(precalculated_logistic_regression_explainer) without return types