feat: Support deletes with responses (#919)

Author: ntucker

packages/experimental/src/rest/Resource.ts

@@ -126,7 +126,9 @@ export default abstract class Resource extends BaseResource {
     return this.memo('#delete', () =>
       endpoint.extend({
         fetch(this: RestEndpoint, params: any) {
-          return endpoint.fetch.call(this, params).then(() => params);
+          return endpoint.fetch
+            .call(this, params)
+            .then(res => (res ? res : params));
         },
         method: 'DELETE',
         schema: new Delete(this),