code: def add_unique_template_variables(self, options):
          
          options.update(dict(
              colorStops=self.color_stops,
              radiusStops=self.radius_stops,
              weightProperty=self.weight_property,
              weightStops=self.weight_stops,
              intensityStops=self.intensity_stops,
          ))
          if self.vector_source:
              options.update(dict(
                  vectorWeightStops=self.generate_vector_numeric_map('weight')))
docs: Update map template variables specific to heatmap visual