code: def save(self, saveas: str = None):
      if saveas is None:
          saveas = self.saveas
      if saveas.lower().endswith(".jpg") or saveas.lower().endswith(
          ".png"
      ):
          im = Image.open(self._get_buffer()[:, :, ::-1])
          im.save(saveas)
      else:
          self.fig.savefig(saveas)
  
imports: import colorsys
  import io
  import os
  from typing import Union
  import matplotlib
  import matplotlib.colors
  import matplotlib.figure
  import numpy
  import requests
  import torch
  from matplotlib.backends.backend_agg import FigureCanvasAgg
  from mmf.datasets.processors.frcnn_processor import img_tensorize
  from PIL import Image
label_desc: Use image node_id 6 for calling the SingleImageViz obj's underlying member method code with example usage: obj.save(saveas) without return types