code: def _prop_descriptions(self):
      return """\
          active
              Determines which button (by index starting from 0) is
              considered active.
          bgcolor
              Sets the background color of the update menu buttons.
          bordercolor
              Sets the color of the border enclosing the update menu.
          borderwidth
              Sets the width (in px) of the border enclosing the
              update menu.
          buttons
              A tuple of
              :class:`plotly.graph_objects.layout.updatemenu.Button`
              instances or dicts with compatible properties
          buttondefaults
              When used in a template (as
              layout.template.layout.updatemenu.buttondefaults), sets
              the default property values to use for elements of
              layout.updatemenu.buttons
          direction
              Determines the direction in which the buttons are laid
              out, whether in a dropdown menu or a row/column of
              buttons. For `left` and `up`, the buttons will still
              appear in left-to-right or top-to-bottom order
              respectively.
          font
              Sets the font of the update menu button text.
          name
              When used in a template, named items are created in the
              output figure in addition to any items the figure
              already has in this array. You can modify these items
              in the output figure by making your own item with
              `templateitemname` matching this `name` alongside your
              modifications (including `visible: false` or `enabled:
              false` to hide it). Has no effect outside of a
              template.
          pad
              Sets the padding around the buttons or dropdown menu.
          showactive
              Highlights active dropdown item or active button if
              true.
          templateitemname
              Used to refer to a named item in this array in the
              template. Named items from the template will be created
              even without a matching item in the input figure, but
              you can modify one by making an item with
              `templateitemname` matching its `name`, alongside your
              modifications (including `visible: false` or `enabled:
              false` to hide it). If there is no template or no
              matching item, this item will be hidden unless you
              explicitly show it with `visible: true`.
          type
              Determines whether the buttons are accessible via a
              dropdown menu or whether the buttons are stacked
              horizontally or vertically
          visible
              Determines whether or not the update menu is visible.
          x
              Sets the x position (in normalized coordinates) of the
              update menu.
          xanchor
              Sets the update menu's horizontal position anchor. This
              anchor binds the `x` position to the "left", "center"
              or "right" of the range selector.
          y
              Sets the y position (in normalized coordinates) of the
              update menu.
          yanchor
              Sets the update menu's vertical position anchor This
              anchor binds the `y` position to the "top", "middle" or
              "bottom" of the range selector.
          """
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 37 for calling the Updatemenu obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str