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# Client API Reference
All client-side components and hooks are importable from `pyxle/client`:
```jsx
import {
Head, Script, Image, ClientOnly,
Form, useAction, useAuth, useWebSocket,
Link, navigate, prefetch, refresh, invalidate, usePathname
} from 'pyxle/client';
```
---
## Components
### ``
Manages document `` elements during server-side rendering.
```jsx
Page Title
```
**Props:** Children only (standard React children).
**Behaviour:**
- Renders `null` in the DOM
- During SSR, extracts children markup and registers head elements
- Elements are merged and deduplicated with the `HEAD` Python variable and layout head blocks
- Can be used in any component (page, layout, or nested)
---
### ` {/* 60s */}
{children}
);
}
```
For per-mutation control, prefer [`invalidate(url)`](#invalidateurl) or the `x-pyxle-invalidate` response header over global TTL tuning.
## Continue reading
- Previous: [Runtime API Reference](https://pyxle.dev/docs/reference/runtime-api.md)
- Next: [Plugins API Reference](https://pyxle.dev/docs/reference/plugins-api.md)
---
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