# Page Not Found

The URL `api/csharp/yarn.unity/yarn.unity.serializeddictionary/yarn.unity.serializeddictionary.containskey` does not exist.

You might be looking for one of these pages:
- [ContainsKey(TKey)](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.serializabledictionarybase-2/yarn.unity.serializabledictionarybase.containskey.md)
- [Contains(KeyValuePair<TKey, TValue>)](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.serializabledictionarybase-2/yarn.unity.serializabledictionarybase.contains.md)
- [Storage<T>](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.serializabledictionary-1/yarn.unity.serializabledictionary.storage.md)
- [SerializableDictionary(IDictionary<TKey, TValue>)](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.serializabledictionary-2/yarn.unity.serializabledictionary..ctor-2.md)
- [SerializableDictionary()](https://docs.yarnspinner.dev/api/csharp/yarn.unity/yarn.unity.serializabledictionary-3/yarn.unity.serializabledictionary..ctor-3.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.yarnspinner.dev/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.yarnspinner.dev/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/api/csharp/yarn.unity/yarn.unity.serializabledictionarybase-2/yarn.unity.serializabledictionarybase.containskey.md`)
- Use `Accept: text/markdown` header for content negotiation