title: What is "|safe" in odoo email template in field email_from
body: <p>Odoo email template is using the email_from in the email template. in that i have seen some example like</p>
  
  <p><code>${(object.email or '')|safe}</code></p>
  
  <p>here is the screenshot</p>
  
  <p><a href="https://i.stack.imgur.com/X1b7O.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/X1b7O.jpg" alt="enter image description here"></a></p>
  
  <p>in that i am getting confused with the <code>|safe</code>, i wanted to know the use of '|safe'. </p>