"length": {"type": "integer", "title": "Length"},
                        "area": {"type": "integer", "title": "Area", "readOnly": True},
                    },
                    "type": "object",
                    "required": ["width", "length", "area"],
                    "title": "Rectangle",
                }
            }
        },

    if not match_pre:
        raise RuntimeError("Couldn't find pre section (<style>) in index.md")
    frontmatter_end = match_pre.end()
    pre_end = match_start.end()
    post_start = match_end.start()
    template = Template(index_sponsors_template)
    message = template.render(sponsors=sponsors)
    pre_content = content[frontmatter_end:pre_end]
    post_content = content[post_start:]

from fastapi.testclient import TestClient

from docs_src.cors.tutorial001 import app


def test_cors():
    client = TestClient(app)
    # Test pre-flight response
    headers = {
        "Origin": "https://localhost.tiangolo.com",
        "Access-Control-Request-Method": "GET",
        "Access-Control-Request-Headers": "X-Example",
    }
    response = client.options("/", headers=headers)
    assert response.status_code == 200, response.text

) -> Navigation:
    new_items = generate_renamed_section_items(nav.items, config=config)
    return Navigation(items=new_items, pages=nav.pages)


def on_pre_page(page: Page, *, config: MkDocsConfig, files: Files) -> Page:
    return page


def on_page_markdown(
    markdown: str, *, page: Page, config: MkDocsConfig, files: Files
) -> str: