Beautified import

ref #111

src/models/responses/ResponseSelfServiceRunner.ts

@@ -1,12 +1,4 @@
-import {
-    IsInt,
-
-
-
-
-
-    IsString
-} from "class-validator";
+import { IsInt, IsString } from "class-validator";
 import { DistanceDonation } from '../entities/DistanceDonation';
 import { Runner } from '../entities/Runner';
 import { RunnerGroup } from '../entities/RunnerGroup';