code: def test_RegressionEvaluation__handle_None_fig_args():
      assert RegressionEvaluation(fig_args={"abc": 1}).fig_args == {
          "abc": 1,
          "figsize": (12, 6),
      }
      assert RegressionEvaluation(fig_args=None).fig_args == {
          "figsize": (12, 6)
      }
      assert RegressionEvaluation(
          fig_args={"figsize": (6, 6)}
      ).fig_args == {"figsize": (6, 6)}
  
file_path: autogluon/eda/tests/unittests/visualization/test_model.py
imports: from unittest.mock import ANY, MagicMock
  import matplotlib.pyplot
  import numpy
  import pandas
  import pytest
  import seaborn
  from autogluon.eda import AnalysisState
  from autogluon.eda.visualization import ConfusionMatrix, FeatureImportance, ModelLeaderboard, RegressionEvaluation
label_desc: Use image node_id 6 for calling a global function with example usage: test_RegressionEvaluation__handle_None_fig_args() without return types