docstr: Determines which button (by index starting from 0) is
  considered active.
  
  The 'active' property is a integer and may be specified as:
    - An int (or float that will be cast to an int)
      in the interval [-1, 9223372036854775807]
  
  Returns
  -------
  int
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code: def active(self):
      """
      Determines which button (by index starting from 0) is
      considered active.
  
      The 'active' property is a integer and may be specified as:
        - An int (or float that will be cast to an int)
          in the interval [-1, 9223372036854775807]
  
      Returns
      -------
      int
      """
      return self["active"]
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 1 for calling the Updatemenu obj's underlying member method code with example usage: obj.active() and returns: self