@app.route("<STR_LIT>")<EOL>def xml():
response = make_response(render_template("<STR_LIT>"))<EOL>response.headers["<STR_LIT:Content-Type>"] = "<STR_LIT>"<EOL>return response<EOL>
Returns a simple XML document.
    ---
    tags:
      - Response formats
    produces:
      - application/xml
    responses:
      200:
        description: An XML document.