public function codeOfConduct($username, $repository)
    {
        //This api is in preview mode, so set the correct accept-header
        $this->acceptHeaderValue = 'application/vnd.github.scarlet-witch-preview+json';

        return $this->get('/repos/'.rawurldecode($username).'/'.rawurldecode($repository).'/community/code_of_conduct');
    }