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# DocumentElement

Represents an element that is contained within a document.
Such elements can have identifiers that uniquely identify
them within a document.

```
protocol DocumentElement : Hashable
```

## Topics

### Implementing a document element

[`associatedtype Document : MergeableDocument`](/documentation/Assignables/DocumentElement/Document)

The document type this element is for.

## Relationships

### Conforming Types

[`Page`](/documentation/Assignables/AssignedWorkDocument/Page)

[`Page`](/documentation/Assignables/AssignableDocument/Page)

[`ScoreAnnotation`](/documentation/Assignables/AssignedWorkDocument/ScoreAnnotation)

[`Question`](/documentation/Assignables/AssignableDocument/Question)

[`QuestionBox`](/documentation/Assignables/AssignableDocument/QuestionBox)

### Inherits From

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

### Inherited By

[`AssignableDocumentElement`](/documentation/Assignables/AssignableDocumentElement)

[`AssignedWorkDocumentElement`](/documentation/Assignables/AssignedWorkDocumentElement)

---

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