docstr: The 'hoverlabel' property is an instance of Hoverlabel
  that may be specified as:
    - An instance of :class:`plotly.graph_objs.sankey.node.Hoverlabel`
    - A dict of string/value properties that will be passed
      to the Hoverlabel constructor
  
      Supported dict properties:
  
          align
              Sets the horizontal alignment of the text
              content within hover label box. Has an effect
              only if the hover label text spans more two or
              more lines
          alignsrc
              Sets the source reference on Chart Studio Cloud
              for `align`.
          bgcolor
              Sets the background color of the hover labels
              for this trace
          bgcolorsrc
              Sets the source reference on Chart Studio Cloud
              for `bgcolor`.
          bordercolor
              Sets the border color of the hover labels for
              this trace.
          bordercolorsrc
              Sets the source reference on Chart Studio Cloud
              for `bordercolor`.
          font
              Sets the font used in hover labels.
          namelength
              Sets the default length (in number of
              characters) of the trace name in the hover
              labels for all traces. -1 shows the whole name
              regardless of length. 0-3 shows the first 0-3
              characters, and an integer >3 will show the
              whole name if it is less than that many
              characters, but if it is longer, will truncate
              to `namelength - 3` characters and add an
              ellipsis.
          namelengthsrc
              Sets the source reference on Chart Studio Cloud
              for `namelength`.
  
  Returns
  -------
  plotly.graph_objs.sankey.node.Hoverlabel
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code: def hoverlabel(self):
      """
      The 'hoverlabel' property is an instance of Hoverlabel
      that may be specified as:
        - An instance of :class:`plotly.graph_objs.sankey.node.Hoverlabel`
        - A dict of string/value properties that will be passed
          to the Hoverlabel constructor
  
          Supported dict properties:
  
              align
                  Sets the horizontal alignment of the text
                  content within hover label box. Has an effect
                  only if the hover label text spans more two or
                  more lines
              alignsrc
                  Sets the source reference on Chart Studio Cloud
                  for `align`.
              bgcolor
                  Sets the background color of the hover labels
                  for this trace
              bgcolorsrc
                  Sets the source reference on Chart Studio Cloud
                  for `bgcolor`.
              bordercolor
                  Sets the border color of the hover labels for
                  this trace.
              bordercolorsrc
                  Sets the source reference on Chart Studio Cloud
                  for `bordercolor`.
              font
                  Sets the font used in hover labels.
              namelength
                  Sets the default length (in number of
                  characters) of the trace name in the hover
                  labels for all traces. -1 shows the whole name
                  regardless of length. 0-3 shows the first 0-3
                  characters, and an integer >3 will show the
                  whole name if it is less than that many
                  characters, but if it is longer, will truncate
                  to `namelength - 3` characters and add an
                  ellipsis.
              namelengthsrc
                  Sets the source reference on Chart Studio Cloud
                  for `namelength`.
  
      Returns
      -------
      plotly.graph_objs.sankey.node.Hoverlabel
      """
      return self["hoverlabel"]
  
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 13 for calling the Node obj's underlying member method code with example usage: obj.hoverlabel() and returns: self