fix(types): add models property to sequelize class (#10736)

types/lib/sequelize.d.ts

@@ -697,6 +697,13 @@ export class Sequelize extends Hooks {
   public readonly connectionManager: ConnectionManager;
 
   /**
+   * Dictionary of all models linked with this instance.
+   */
+  public readonly models: {
+    [key: string]: typeof Model;
+  };
+
+  /**
    * Instantiate sequelize with name of database, username and password
    *
    * #### Example usage

types/test/sequelize.ts

-import { Config, Sequelize } from 'sequelize';
+import { Config, Sequelize, Model } from 'sequelize';
 
 Sequelize.useCLS({
 });
@@ -45,3 +45,4 @@ Sequelize.afterConnect(() => {
 
 });
 
+const myModel: typeof Model = sequelize.models.asd;