Given this Flask test code snippet, what will be printed?

Given this Flask test code snippet, what will be printed?

from unittest.mock import patch
import requests

def fetch_data():
    response = requests.get('http://example.com')
    return response.status_code

with patch('requests.get') as mock_get:
    mock_get.return_value.status_code = 404
    print(fetch_data())