all these changes

frontend/node_modules/@turf/isolines/index.d.ts

@@ -0,0 +1,19 @@
+import {
+  Point,
+  MultiLineString,
+  FeatureCollection,
+  Properties,
+} from "@turf/helpers";
+
+/**
+ * http://turfjs.org/docs/#isolines
+ */
+export default function isolines(
+  points: FeatureCollection<Point, any>,
+  breaks: number[],
+  options?: {
+    zProperty?: string;
+    commonProperties?: Properties;
+    breaksProperties?: Properties[];
+  }
+): FeatureCollection<MultiLineString>;