spec\Crummy\Phlack\Message\Collection\AttachmentCollectionSpec::it_is_an_encodable_collection PHP Метод

    public function it_is_an_encodable_collection()
    {
        $this->shouldHaveType('Crummy\\Phlack\\Message\\Collection\\AttachmentCollection');
        $this->shouldImplement('\\Crummy\\Phlack\\Message\\Collection\\EncodableCollection');
    }