class_docstr: Overwrites default settings from matplotlib.pyplot.
  If a function is not overwritten, the default function will be used.
code: def save_figure(self, filename):
      self.plt.savefig(filename, dpi=400, bbox_inches="tight")
      self.plt.close()
  
file_path: SMAC3/benchmark/src/utils/styled_plot.py
imports: from distutils.spawn import find_executable
  import matplotlib
  import base64
  import io
  import matplotlib.pyplot
label_desc: Use image node_id 3 for calling the StyledPlot obj's underlying member method code with example usage: obj.save_figure(filename) without return types