class_docstr: Overwrites default settings from matplotlib.pyplot.
  If a function is not overwritten, the default function will be used.
code: def render(self):
      # Ccreate a virtual file which matplotlib can use to save the figure
      buffer = io.BytesIO()
      self.plt.savefig(buffer, dpi=400, bbox_inches="tight")
      buffer.seek(0)
  
      # Display any kind of image taken from
      # https://github.com/plotly/dash/issues/71
      encoded_image = base64.b64encode(buffer.read())
      return "data:image/png;base64,{}".format(encoded_image.decode())
  
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 4 for calling the StyledPlot obj's underlying member method code with example usage: obj.render() and returns: str