docstr: 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.
  
  The 'depthfade' property is an enumeration that may be specified as:
    - One of the following enumeration values:
          [True, False, 'reversed']
  
  Returns
  -------
  Any
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code: def depthfade(self):
      """
      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.
  
      The 'depthfade' property is an enumeration that may be specified as:
        - One of the following enumeration values:
              [True, False, 'reversed']
  
      Returns
      -------
      Any
      """
      return self["depthfade"]
  
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 21 for calling the Marker obj's underlying member method code with example usage: obj.depthfade() and returns: self