code: def read_matplot_figures() -> t.List[io.BytesIO]:
      """Return all active matplot figures."""
      output = []
      figures = [plt.figure(n) for n in plt.get_fignums()]
      for fig in figures:
          buffer = io.BytesIO()
          fig.savefig(buffer, format="png")
          buffer.seek(0)
          output.append(buffer)
          fig.clear()
          plt.close(fig)
      return output
  
imports: import io
  import json
  import textwrap
  import typing
  from contextlib import contextmanager
  import matplotlib
  import matplotlib.pyplot
  import numpy
  import pandas
  import plotly.io._html
  from ipywidgets import DOMWidget
  from jsonpickle.pickler import Pickler
  from pandas.io.formats.style import Styler
  from plotly.io._utils import plotly_cdn_url
  from plotly.offline.offline import get_plotlyjs
  from deepchecks.core import check_result
  from deepchecks.core import errors
  from deepchecks.utils.dataframes import hide_index_for_display, un_numpy
  from deepchecks.utils.html import linktag
  from deepchecks.utils.strings import truncate_string
label_desc: Use image node_id 9 for calling a global function with example usage: read_matplot_figures() and returns: output