public function deleteTag($id, $tag, $identifyBy = "email")
    {
        $request = new Request('subscribers');
        $request->setQuery(['identified_by' => $identifyBy]);
        $request->setIdParam($id);
        $request->addSubresource(['name' => 'tags', 'id' => urlencode($tag)]);

        $response = $this->client->delete($request);

        $this->assertSuccessResponse($response);

        return $response->getData();

    }