code: def shade(self, binned):
      # Make the blended image with datashader
      img = tf.shade(
          binned,
          color_key=self._color_key,
          min_alpha=self._alpha_range[0],
          alpha=self._alpha_range[1],
          color_baseline=self._color_baseline,
      )
      rgba = uint32_to_uint8(img.data)
      return rgba
  
imports: import warnings
  from matplotlib.image import _ImageBase
  from matplotlib.patches import Patch
  from matplotlib.transforms import Bbox, TransformedBbox, BboxTransform
  import matplotlib
  import numpy
  from .None import reductions
  from .None import transfer_functions
  from .colors import Sets1to3
  from .core import bypixel, Canvas
label_desc: Use image node_id 2 for calling the CategoricalDSArtist obj's underlying member method code with example usage: obj.shade(binned) and returns: rgba