# BackpressureAuth
<span class="source-link">[[Source]](src/backpressure/backpressure.md#L93)</span>
```pony
type BackpressureAuth is
  (AmbientAuth val | ApplyReleaseBackpressureAuth val)
```

#### Type Alias For

* ([AmbientAuth](builtin-AmbientAuth.md) val | [ApplyReleaseBackpressureAuth](backpressure-ApplyReleaseBackpressureAuth.md) val)

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