add delete

src/storage/ETHStorage.ts

@@ -19,7 +19,7 @@ export class ETHStorage implements Storage {
         throw new Error("Method not implemented.");
     }
 
-    async delete(path: string): Promise<void> {
+    async delete(path: string): Promise<Status> {
         throw new Error("Method not implemented.");
     }
     async download(path: string): Promise<[Status, Buffer]> {

src/storage/storage.ts

@@ -16,7 +16,7 @@ export interface Storage {
 
     download(path: string): Promise<[Status, Buffer]>
     upload(path: string, file: Buffer): Promise<Status>
-    delete(path: string): Promise<void>
+    delete(path: string): Promise<Status>
     listRefs(): Promise<Ref[]>
     addRefs(refs: Ref[]): Promise<Status>
     delRefs(refs: Ref[]): Promise<Status>