declare namespace pc {

    /**
     * @name pc.ModelComponentSystem
     * @description Create a new ModelComponentSystem
     * @class Allows an Entity to render a model or a primitive shape like a box,
     * capsule, sphere, cylinder, cone etc.
     * @param {pc.Application} app The Application.
     * @extends pc.ComponentSystem
     */
    class ModelComponentSystem extends pc.ComponentSystem {
        constructor(app: pc.Application)
    }
}