protected function gitHubUsername(InputInterface $input, OutputInterface $output)
    {
        $username = $input->getArgument('github_username');
        return isset($username) ? $username : $this->getGithubUserNameFromConfig($output);
    }
protected function gitHubUsername(InputInterface $input, OutputInterface $output)
    {
        $username = $input->getArgument('github_username');
        return isset($username) ? $username : $this->getGithubUserNameFromConfig($output);
    }
protected function gitHubUsername ( InputInterface $ input , OutputInterface $ output ) { $ username = $ input -> getArgument ( 'github_username' ) ; return isset ( $ username ) ? $ username : $ this -> getGithubUserNameFromConfig ( $ output ) ; }
Get github username.

@param InputInterface $input
@param OutputInterface $output
@return array|mixed
Get github username .