Union types declare that a value either has one type, or some other type. The| sorbet.org
This doc will cover how to enable and disable the **static checks** that Sorbet| sorbet.org
> This page describes the syntax of method signatures, or `sig`s. For a complete| sorbet.org
```ruby| sorbet.org
## Step 1: Install dependencies| sorbet.org
Sorbet supports abstract classes, abstract methods, and interfaces. Abstract| sorbet.org
As we've mentioned before, Sorbet is a [gradual](/docs/gradual) system: it can be| sorbet.org