code: def test_plot_rainbow(self, close_figures):
      fig = interaction_plot(
          self.weight,
          self.duration,
          self.days,
          markers=["D", "^"],
          ms=10,
      )
  
file_path: statsmodels/statsmodels/graphics/tests/test_factorplots.py
imports: import numpy
  from numpy.testing import assert_equal, assert_raises
  from pandas import Series
  import pytest
  from statsmodels.graphics.factorplots import _recode, interaction_plot
label_desc: Use image node_id 3 for calling the TestInteractionPlot obj's underlying member method code with example usage: obj.test_plot_rainbow(close_figures) without return types