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initOutput example

try {
            $this->input = new ArrayInput($input);
            if (isset($options['interactive'])) {
                $this->input->setInteractive($options['interactive']);
            }

            if ($this->inputs) {
                $this->input->setStream(self::createStream($this->inputs));
            }

            $this->initOutput($options);

            return $this->statusCode = $this->application->run($this->input, $this->output);
        } finally {
            // SHELL_VERBOSITY is set by Application::configureIO so we need to unset/reset it             // to its previous value to avoid one test's verbosity to spread to the following tests             if (false === $prevShellVerbosity) {
                if (\function_exists('putenv')) {
                    @putenv('SHELL_VERBOSITY');
                }
                unset($_ENV['SHELL_VERBOSITY']);
                unset($_SERVER['SHELL_VERBOSITY']);
            }

// Use an in-memory input stream even if no inputs are set so that QuestionHelper::ask() does not rely on the blocking STDIN.         $this->input->setStream(self::createStream($this->inputs));

        if (isset($options['interactive'])) {
            $this->input->setInteractive($options['interactive']);
        }

        if (!isset($options['decorated'])) {
            $options['decorated'] = false;
        }

        $this->initOutput($options);

        return $this->statusCode = $this->command->run($this->input, $this->output);
    }
}