docs(model): clarify documentation on projection aliasing (#10595)

Closes #10592

docs/models-usage.md

@@ -25,7 +25,7 @@ Project.findOne({
   attributes: ['id', ['name', 'title']]
   attributes: ['id', ['name', 'title']]
 }).then(project => {
 }).then(project => {
   // project will be the first entry of the Projects table with the title 'aProject' || null
   // project will be the first entry of the Projects table with the title 'aProject' || null
-  // project.title will contain the name of the project
+  // project.get('title') will contain the name of the project
 })
 })
 ```
 ```
 
 

types/lib/model.d.ts

@@ -379,15 +379,21 @@ export type OrderItem =
   | [typeof Model, typeof Model, string, string];
   | [typeof Model, typeof Model, string, string];
 export type Order = string | Fn | Col | Literal | OrderItem[];
 export type Order = string | Fn | Col | Literal | OrderItem[];
 
 
+/**
+ * Please note if this is used the aliased property will not be available on the model instance
+ * as a property but only via `instance.get('alias')`.
+ */
+export type ProjectionAlias = [string | Literal | Fn, string];
+
 export type FindAttributeOptions =
 export type FindAttributeOptions =
-  | (string | [string | Literal | Fn, string])[]
+  | (string | ProjectionAlias)[]
   | {
   | {
       exclude: string[];
       exclude: string[];
-      include?: (string | [string | Literal | Fn, string])[];
+      include?: (string | ProjectionAlias)[];
     }
     }
   | {
   | {
       exclude?: string[];
       exclude?: string[];
-      include: (string | [string | Literal | Fn, string])[];
+      include: (string | ProjectionAlias)[];
     };
     };
 
 
 /**
 /**
@@ -2211,7 +2217,7 @@ export abstract class Model<T = any, T2 = any> extends Hooks {
   public static belongsTo<M extends Model, T extends Model>(
   public static belongsTo<M extends Model, T extends Model>(
     this: ModelCtor<M>, target: ModelCtor<T>, options?: BelongsToOptions
     this: ModelCtor<M>, target: ModelCtor<T>, options?: BelongsToOptions
   ): BelongsTo<M, T>;
   ): BelongsTo<M, T>;
-    
+
   /**
   /**
    * Create an association that is either 1:m or n:m.
    * Create an association that is either 1:m or n:m.
    *
    *