diff --git a/collection.ts b/collection.ts
index d23d71c..e68eef1 100644
--- a/collection.ts
+++ b/collection.ts
@@ -1,6 +1,5 @@
 import { axiod } from "./deps.ts";
 import { ArangoCursor, CursorOptions } from "./cursor.ts";
-import { Edge, EdgeResponse } from "./edge.ts";
 
 /**
  * Define Document methods.
@@ -10,13 +9,6 @@ export interface DocumentBase {
   delete(): Promise<boolean>;
 }
 
-export type DocumentResponse<T> = {
-  code?: number;
-  error?: boolean;
-  errorMessage?: string;
-  errorNum?: number;
-} & Partial<Document<T>>;
-
 /**
  * Join DocumentData<T> and DocumentBase
  */