Update eloquent-mutators.md (#10506)

Author: milwad-dev

eloquent-mutators.md

@@ -214,6 +214,7 @@ The `casts` method should return an array where the key is the name of the attri
 <div class="content-list" markdown="1">
 
 - `array`
+- `AsFluent::class`
 - `AsStringable::class`
 - `AsUri::class`
 - `boolean`