text: // @flow
  
  type $npm$turfPolygon$LineRing = Array<[number, number]>;
  
  type $npm$turfPolygon$Polygon = {
    type: "Polygon",
    coordinates: Array<$npm$turfPolygon$LineRing>,
    bbox?: Array<number>,
    crs?: { type: string, properties: mixed }
  };
  
  type $npm$turfPolygon$FeaturePolygon<Properties: Object> = {
    type: "Feature",
    geometry: $npm$turfPolygon$Polygon,
    properties: ?{ [key: string]: ?Properties },
    bbox?: Array<number>,
    crs?: { type: string, properties: mixed }
  };
  
  declare module "turf-polygon" {
    declare module.exports: <Properties: Object>(
      Array<Array<[number, number]>>,
      properties?: Properties
    ) => $npm$turfPolygon$FeaturePolygon;
  }
  