# Page Not Found

The URL `v1.0/articles/api-plugin-helper-event_emitter` does not exist.

You might be looking for one of these pages:
- [Plugin Helper: Event Emitter](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-event_emitter.md)
- [Plugin Helper: Event Loop](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-event_loop.md)
- [Plugin Helper: Formatter](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-formatter.md)
- [Plugin Helper: Compat Parameters](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-compat_parameters.md)
- [Plugin Helper: Service Discovery](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-service_discovery.md)

## How to find the correct page

1. **Ask a question**: /sitemap.md?ask=<question> - Complete answer with sources
2. **Browse the full index**: [/sitemap.md](https://docs.fluentd.org/sitemap.md) - Complete documentation index
3. **View the full content**: [/llms-full.txt](https://docs.fluentd.org/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/plugin-helper-overview/api-plugin-helper-event_emitter.md`)
- Use `Accept: text/markdown` header for content negotiation