如何使用flask将变量呈现为html?

Using flask, I'm passing in a list of dictionaries to one of the pages. One of the variables contains html text (ex:var x = <h1>hello</h1>). How would I get it to display as

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<!DOCTYPE html>
<html>
    <head>

    </head>
    <body>
    {% for post in posts %}
        <p>{{post.title}}<p>

        {{post.description}}
        
    {% endfor %}
    </body>

</html>