# Yarn.Saliency Namespace

## Summary

Contains classes for choosing the most relevant content out of a set of possible options.

## Classes

| Name                                                                                                                                      | Description                                                                                                                                                |
| ----------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [BestLeastRecentlyViewedSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy.md)             | A content saliency strategy that returns the first of the best, least-recently seen choices from the provided options.                                     |
| [BestSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.bestsaliencystrategy.md)                                                   | A content saliency strategy that returns the best of the provided options.                                                                                 |
| [ContentSaliencyOption](/api/csharp/yarn.saliency/yarn.saliency.contentsaliencyoption.md)                                                 | Represents a piece of content that may be selected by an [IContentSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.icontentsaliencystrategy.md) . |
| [EnumerableRandomExtension](/api/csharp/yarn.saliency/yarn.saliency.enumerablerandomextension.md)                                         | Contains extension methods for ``System.Collections.Generic.IEnumerable`1`` .                                                                              |
| [FirstSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.firstsaliencystrategy.md)                                                 | A content saliency strategy that always returns the first non-failing item in the list of available options.                                               |
| [RandomBestLeastRecentlyViewedSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.randombestleastrecentlyviewedsaliencystrategy.md) | A content saliency strategy that returns a random choice of the best, least-recently seen choices from the provided options.                               |

## Enums

| Name                                                                                                | Description                                                                                                                            |
| --------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| [ContentSaliencyContentType](/api/csharp/yarn.saliency/yarn.saliency.contentsaliencycontenttype.md) | Indicates what type of content a [ContentSaliencyOption](/api/csharp/yarn.saliency/yarn.saliency.contentsaliencyoption.md) represents. |

## Interfaces

| Name                                                                                            | Description                                                                    |
| ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------ |
| [IContentSaliencyStrategy](/api/csharp/yarn.saliency/yarn.saliency.icontentsaliencystrategy.md) | Contains methods for choosing a piece of content from a collection of options. |


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