text: import _plotly_utils.basevalidators
  
  
  class MarkerValidator(_plotly_utils.basevalidators.CompoundValidator):
  
      def __init__(
          self, plotly_name='marker', parent_name='choropleth', **kwargs
      ):
          super(MarkerValidator, self).__init__(
              plotly_name=plotly_name,
              parent_name=parent_name,
              data_class_str=kwargs.pop('data_class_str', 'Marker'),
              data_docs=kwargs.pop(
                  'data_docs', """
              line
                  plotly.graph_objs.choropleth.marker.Line
                  instance or dict with compatible properties
              opacity
                  Sets the opacity of the locations.
              opacitysrc
                  Sets the source reference on plot.ly for
                  opacity .
  """
              ),
              **kwargs
          )
  