text: import _plotly_utils.basevalidators
  
  
  class ArrowsideValidator(_plotly_utils.basevalidators.FlaglistValidator):
      def __init__(
          self, plotly_name="arrowside", parent_name="layout.scene.annotation", **kwargs
      ):
          super(ArrowsideValidator, self).__init__(
              plotly_name=plotly_name,
              parent_name=parent_name,
              edit_type=kwargs.pop("edit_type", "calc"),
              extras=kwargs.pop("extras", ["none"]),
              flags=kwargs.pop("flags", ["end", "start"]),
              **kwargs,
          )
  