text: import _plotly_utils.basevalidators
  
  
  class StreamValidator(_plotly_utils.basevalidators.CompoundValidator):
      def __init__(self, plotly_name="stream", parent_name="scatterpolar", **kwargs):
          super(StreamValidator, self).__init__(
              plotly_name=plotly_name,
              parent_name=parent_name,
              data_class_str=kwargs.pop("data_class_str", "Stream"),
              data_docs=kwargs.pop(
                  "data_docs",
                  """
              maxpoints
                  Sets the maximum number of points to keep on
                  the plots from an incoming stream. If
                  `maxpoints` is set to 50, only the newest 50
                  points will be displayed on the plot.
              token
                  The stream id number links a data trace on a
                  plot with a stream. See https://chart-
                  studio.plotly.com/settings for more details.
  """,
              ),
              **kwargs
          )
  