Is it possible to use find_related(..) for DerivePartialModel?

[zhuravkov]

Following the examples, I create a DerivePartialModel , in the query I do into_partial_model .., but then when retrieving related records find_related,
```error[E0599]: no method named find_related found for struct `PartialUser` in the current scope
--> src/services/user.rs:120:40
|
120 | let sites: Vecsite::Model = user.find_related(Site).all(db).await?;
| ^^^^^^^^^^^^ method not found in `PartialUser`
|
::: src/entities/users.rs:25:1
|
25 | pub struct PartialUser {
| ---------------------- method `find_related` not found for this struct
|
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following traits define an item `find_related`, perhaps you need to implement one of them:
candidate #1: `sea_orm::Related`
candidate #2: `sea_orm::ModelTrait``

How to preserve find_related behavior for PartialUser???