# Classes

| Class | Description |
|-|-|
| [`flyteplugins.hitl.Event`](https://www.union.ai/docs/v2/union/api-reference/integrations/hitl/packages/flyteplugins.hitl/event/page.md) |An event that waits for human input via an embedded FastAPI app. |

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**Source**: https://github.com/unionai/unionai-docs/blob/main/content/api-reference/integrations/hitl/classes/_index.md
**HTML**: https://www.union.ai/docs/v2/union/api-reference/integrations/hitl/classes/