code: def _is_transparent(color):
      """Determine transparency from alpha."""
      rgba = colors.to_rgba(color)
      return rgba[3] < 0.5
  
file_path: catboost/contrib/python/ipykernel/py2/ipykernel/pylab/backend_inline.py
imports: from __future__ import print_function
  import matplotlib
  from matplotlib.backends.backend_agg import new_figure_manager, FigureCanvasAgg
  from matplotlib import colors
  from matplotlib._pylab_helpers import Gcf
  from IPython.core.getipython import get_ipython
  from IPython.core.display import display
  from .config import InlineBackend
label_desc: Use image node_id 7 for calling a global function with example usage: _is_transparent(color) and returns: unknown