docstr: The 'threshold' property is an instance of Threshold
  that may be specified as:
    - An instance of :class:`plotly.graph_objs.indicator.gauge.Threshold`
    - A dict of string/value properties that will be passed
      to the Threshold constructor
  
      Supported dict properties:
  
          line
              :class:`plotly.graph_objects.indicator.gauge.th
              reshold.Line` instance or dict with compatible
              properties
          thickness
              Sets the thickness of the threshold line as a
              fraction of the thickness of the gauge.
          value
              Sets a treshold value drawn as a line.
  
  Returns
  -------
  plotly.graph_objs.indicator.gauge.Threshold
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code: def threshold(self):
      """
      The 'threshold' property is an instance of Threshold
      that may be specified as:
        - An instance of :class:`plotly.graph_objs.indicator.gauge.Threshold`
        - A dict of string/value properties that will be passed
          to the Threshold constructor
  
          Supported dict properties:
  
              line
                  :class:`plotly.graph_objects.indicator.gauge.th
                  reshold.Line` instance or dict with compatible
                  properties
              thickness
                  Sets the thickness of the threshold line as a
                  fraction of the thickness of the gauge.
              value
                  Sets a treshold value drawn as a line.
  
      Returns
      -------
      plotly.graph_objs.indicator.gauge.Threshold
      """
      return self["threshold"]
  
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 17 for calling the Gauge obj's underlying member method code with example usage: obj.threshold() and returns: self