docstr: Determines whether or not a colorbar is displayed for this
  trace. Has an effect only if in `marker.color` is set to a
  numerical array.
  
  The 'showscale' property must be specified as a bool
  (either True, or False)
  
  Returns
  -------
  bool
code: def showscale(self):
      """
      Determines whether or not a colorbar is displayed for this
      trace. Has an effect only if in `marker.color` is set to a
      numerical array.
  
      The 'showscale' property must be specified as a bool
      (either True, or False)
  
      Returns
      -------
      bool
      """
      return self["showscale"]
  
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.showscale() and returns: self