code: def test_plot(self, params):
      self._test_plot(params)
  
imports: import pytest
  import numpy
  from pdpbox.info_plots import TargetPlot, PredictPlot, InteractTargetPlot, InteractPredictPlot
  from pdpbox.utils import FeatureInfo, _make_list
  from conftest import DummyModel, PlotTestBase
label_desc: Use image node_id 4 for calling the TestInteractPredictPlot obj's underlying member method code with example usage: obj.test_plot(params) without return types