code: def test_generate_fig_univariate_continuous(self):
      df = pd.DataFrame(
          {
              "int_data": [10, 20, 30, 40, 50, 0],
              "data_train_test": [
                  "train",
                  "train",
                  "train",
                  "train",
                  "test",
                  "test",
              ],
          }
      )
      fig = generate_fig_univariate_continuous(
          df, "int_data", "data_train_test"
      )
      assert isinstance(fig, plt.Figure)
  
file_path: shapash/tests/unit_tests/report/test_plots.py
imports: import unittest
  from unittest.mock import patch
  import pandas
  import numpy
  import matplotlib.pyplot
  from shapash.report.plots import generate_fig_univariate, generate_fig_univariate_continuous, generate_fig_univariate_categorical
  from shapash.report.common import VarType
label_desc: Use image node_id 4 for calling the TestPlots obj's underlying member method code with example usage: obj.test_generate_fig_univariate_continuous() without return types