| /- | |
| Copyright (c) 2019 Microsoft Corporation. All rights reserved. | |
| Released under Apache 2.0 license as described in the file LICENSE. | |
| Authors: Leonardo de Moura | |
| -/ | |
| prelude | |
| import Init.Data.Option.Basic | |
| import Init.Data.Option.BasicAux | |
| import Init.Data.Option.Instances |