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# subscript(explicit:)

Gets the explicit value of the given depth alignment guide

```
subscript(explicit guide: DepthAlignment) -> CGFloat? { get }
```

## Overview

Find the depth offset of a particular guide in the corresponding
view by using that guide as an index to read from the context:

```
.alignmentGuide(.front) { context in
    context[.front] - 10
}
```

This subscript returns `nil` if no value exists for the guide.

For information about using subscripts in Swift to access member
elements of a collection, list, or, sequence, see
[Subscripts](https://docs.swift.org/swift-book/LanguageGuide/Subscripts.html)
in *The Swift Programming Language*.

---

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