code: function _runImprovedForPartialFeatures (viewportExpressions, renderLayer, inViewportFeaturesIDs) {
      const noFeatures = (inViewportFeaturesIDs.size === 0);
      if (noFeatures) {
          return;
      }
  
      const noPossiblePartialFeatures = (renderLayer.viz.geometryType === GEOMETRY_TYPE.POINT);
      if (noPossiblePartialFeatures) {
          return;
      }
  
      const viewportFeaturesExpressions = viewportExpressions.filter(exp => exp.isA(ViewportFeatures));
      if (viewportFeaturesExpressions.length > 0) {
          _runForPartialViewportFeatures(viewportFeaturesExpressions, renderLayer, inViewportFeaturesIDs);
      }
  }
docs: Run an improved viewportFeatures just for lines or polygons (considering the existence of partial Features)