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# Factorio Runtime Docs Version 2.0.77

# CollisionLayerID - Runtime Docs

## CollisionLayerID :: string

The name of a LuaCollisionLayerPrototype.

#### Example

    "is_lower_object"

Concept used in

- LuaSurface::destroy_decoratives()
- LuaSurface::find_decoratives_filtered()
- LuaTile::collides_with()
- DecorativePrototypeFilter
- EntityPrototypeFilter
- EntitySearchFilters
- TilePrototypeFilter
- TileSearchFilters