def on_page_content(
        self, html: str, /, *, page: Page, config: MkDocsConfig, files: Files
    ) -> str | None:
        """
        The `page_content` event is called after the Markdown text is rendered to
        HTML (but before being passed to a template) and can be used to alter the
        HTML body of the page.

        Args:
            html: HTML rendered from Markdown source as string
            page: `mkdocs.structure.pages.Page` instance
            config: global configuration object
            files: global files collection

        Returns:
            HTML rendered from Markdown source as string
        """
        return html

        The `page_content` event is called after the Markdown text is rendered to
        HTML (but before being passed to a template) and can be used to alter the
        HTML body of the page.

        Args:
            html: HTML rendered from Markdown source as string
            page: `mkdocs.structure.pages.Page` instance
            config: global configuration object
            files: global files collection

        Returns:
            HTML rendered from Markdown source as string
        
mkdocs/plugins.py