public function testUnfollowArtistsOrUsers()
 {
     $options = array('ids' => array('74ASZWbe4lXaubB36ztrGX', '36QJpDe2go2KgaRleHCDTp'));
     $expected = json_encode($options);
     $headers = array('Authorization' => 'Bearer ' . $this->accessToken, 'Content-Type' => 'application/json');
     $return = array('status' => 204);
     $stub = $this->setupStub('DELETE', '/v1/me/following?type=artist', $expected, $headers, $return);
     $api = new SpotifyWebAPI\SpotifyWebAPI($stub);
     $api->setAccessToken($this->accessToken);
     $response = $api->unFollowArtistsOrUsers('artist', array('74ASZWbe4lXaubB36ztrGX', '36QJpDe2go2KgaRleHCDTp'));
     $this->assertTrue($response);
 }