code: def _prop_descriptions(self):
      return """\
          autocolorscale
              Determines whether the colorscale is a default palette
              (`autocolorscale: true`) or the palette determined by
              `marker.colorscale`. Has an effect only if colorsis set
              to a numerical array. In case `colorscale` is
              unspecified or `autocolorscale` is true, the default
              palette will be chosen according to whether numbers in
              the `color` array are all positive, all negative or
              mixed.
          cauto
              Determines whether or not the color domain is computed
              with respect to the input data (here colors) or the
              bounds set in `marker.cmin` and `marker.cmax`  Has an
              effect only if colorsis set to a numerical array.
              Defaults to `false` when `marker.cmin` and
              `marker.cmax` are set by the user.
          cmax
              Sets the upper bound of the color domain. Has an effect
              only if colorsis set to a numerical array. Value should
              have the same units as colors and if set, `marker.cmin`
              must be set as well.
          cmid
              Sets the mid-point of the color domain by scaling
              `marker.cmin` and/or `marker.cmax` to be equidistant to
              this point. Has an effect only if colorsis set to a
              numerical array. Value should have the same units as
              colors. Has no effect when `marker.cauto` is `false`.
          cmin
              Sets the lower bound of the color domain. Has an effect
              only if colorsis set to a numerical array. Value should
              have the same units as colors and if set, `marker.cmax`
              must be set as well.
          coloraxis
              Sets a reference to a shared color axis. References to
              these shared color axes are "coloraxis", "coloraxis2",
              "coloraxis3", etc. Settings for these shared color axes
              are set in the layout, under `layout.coloraxis`,
              `layout.coloraxis2`, etc. Note that multiple color
              scales can be linked to the same color axis.
          colorbar
              :class:`plotly.graph_objects.treemap.marker.ColorBar`
              instance or dict with compatible properties
          colors
              Sets the color of each sector of this trace. If not
              specified, the default trace color set is used to pick
              the sector colors.
          colorscale
              Sets the colorscale. Has an effect only if colorsis set
              to a numerical array. The colorscale must be an array
              containing arrays mapping a normalized value to an rgb,
              rgba, hex, hsl, hsv, or named color string. At minimum,
              a mapping for the lowest (0) and highest (1) values are
              required. For example, `[[0, 'rgb(0,0,255)'], [1,
              'rgb(255,0,0)']]`. To control the bounds of the
              colorscale in color space, use`marker.cmin` and
              `marker.cmax`. Alternatively, `colorscale` may be a
              palette name string of the following list: Greys,YlGnBu
              ,Greens,YlOrRd,Bluered,RdBu,Reds,Blues,Picnic,Rainbow,P
              ortland,Jet,Hot,Blackbody,Earth,Electric,Viridis,Cividi
              s.
          colorssrc
              Sets the source reference on Chart Studio Cloud for
              colors .
          depthfade
              Determines if the sector colors are faded towards the
              background from the leaves up to the headers. This
              option is unavailable when a `colorscale` is present,
              defaults to false when `marker.colors` is set, but
              otherwise defaults to true. When set to "reversed", the
              fading direction is inverted, that is the top elements
              within hierarchy are drawn with fully saturated colors
              while the leaves are faded towards the background
              color.
          line
              :class:`plotly.graph_objects.treemap.marker.Line`
              instance or dict with compatible properties
          pad
              :class:`plotly.graph_objects.treemap.marker.Pad`
              instance or dict with compatible properties
          reversescale
              Reverses the color mapping if true. Has an effect only
              if colorsis set to a numerical array. If true,
              `marker.cmin` will correspond to the last color in the
              array and `marker.cmax` will correspond to the first
              color.
          showscale
              Determines whether or not a colorbar is displayed for
              this trace. Has an effect only if colorsis set to a
              numerical array.
          """
  
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 31 for calling the Marker obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str