code: def test_violin(explainer):
      """Make sure the violin plot is unchanged."""
      fig = plt.figure()
      shap_values = explainer.shap_values(explainer.data)
      shap.plots.violin(shap_values)
      plt.tight_layout()
      return fig
  
file_path: shap/tests/plots/test_violin.py
imports: import matplotlib.pyplot
  import numpy
  import pytest
  import shap
  from shap.utils._exceptions import DimensionError
label_desc: Use image node_id 3 for calling a global function with example usage: test_violin(explainer) and returns: fig