/**
* The `Matter.Engine` module contains methods for creating and manipulating engines.
* An engine is a controller that manages updating the simulation of the world.
* See `Matter.Runner` for an optional game loop utility.
*
* See the included usage [examples](https://github.com/liabru/matter-js/tree/master/examples).
*
* @class Engine
*/
declare var Engine: any;
declare var World: any;
declare var Sleeping: any;
declare var Resolver: {};
declare var Pairs: {};
declare var Metrics: any;
declare var Grid: {};
declare var Events: any;
declare var Composite: any;
declare var Constraint: any;
declare var Common: any;
declare var Body: any;