The hx-encoding attribute allows you to switch the request encoding from the usual application/x-www-form-urlencoded encoding to multipart/form-data, usually to support file uploads in an ajax request.
The value of this attribute should be multipart/form-data.
The hx-encoding tag may be placed on parent elements.
Notes
hx-encoding is inherited and can be placed on a parent element
[HTMX Reference](https://htmx.org/attributes/hx-encoding/)