AMP img (amp-img) modx revo?

Question

MODX

Good day to all.
Faced such a problem that you need to change on AMP pages

<img src="" alt="Вопрос" class="img-fluid">

on the

<amp-img alt="Вопрос" src="" width="900" height="675" layout="responsive"></amp-img>

Need to replace

<img на <amp-img + добавить width="900" height="675" layout="responsive" а в конце добавить ></amp-img>.

Something like this.
I was told that it is possible to do something through str_replace, but I do not know how.
Help who than can.

Answer 1

Where should it be replaced? In chunks, templates, page content?