message: removed pointless line
diff: @@ -20,7 +20,7 @@ type SimplePreSerialFn<T> = (next: HookNextFn) => void;
  type SimplePreParallelFn<T> = (next: HookNextFn, done: PreDoneFn) => void;
  type DocumentPostFn<T> = (this: TypegooseDoc<T>, doc: TypegooseDoc<T>, next?: HookNextFn) => void;
  -type ModelPostFn<T> = (this: any, result: any, next?: HookNextFn) => void;
  +type ModelPostFn<T> = (result: any, next?: HookNextFn) => void;
  type PostNumberResponse<T> = (result: number, next?: HookNextFn) => void;
  type PostSingleResponse<T> = (result: TypegooseDoc<T>, next?: HookNextFn) => void;
  