docstr: Sets the mapbox access token to be used for this mapbox map.
  Alternatively, the mapbox access token can be set in the
  configuration options under `mapboxAccessToken`. Note that
  accessToken are only required when `style` (e.g with values :
  basic, streets, outdoors, light, dark, satellite, satellite-
  streets ) and/or a layout layer references the Mapbox server.
  
  The 'accesstoken' property is a string and must be specified as:
    - A non-empty string
  
  Returns
  -------
  str
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code: def accesstoken(self):
      """
      Sets the mapbox access token to be used for this mapbox map.
      Alternatively, the mapbox access token can be set in the
      configuration options under `mapboxAccessToken`. Note that
      accessToken are only required when `style` (e.g with values :
      basic, streets, outdoors, light, dark, satellite, satellite-
      streets ) and/or a layout layer references the Mapbox server.
  
      The 'accesstoken' property is a string and must be specified as:
        - A non-empty string
  
      Returns
      -------
      str
      """
      return self["accesstoken"]
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 1 for calling the Mapbox obj's underlying member method code with example usage: obj.accesstoken() and returns: self