code: function processMultiGeometry() {
      const subType = type.replace(Constants.geojsonTypes.MULTI_PREFIX, '');
      coordinates.forEach((subCoordinates, index) => {
        const subFeature = {
          type: Constants.geojsonTypes.FEATURE,
          properties: geojson.properties,
          geometry: {
            type: subType,
            coordinates: subCoordinates
          }
        };
        supplementaryPoints = supplementaryPoints.concat(createSupplementaryPoints(subFeature, options, index));
      });
    }
docs: Split a multi-geometry into constituent geometries, and accumulate the supplementary points for each of those constituents