# `LLMProxy.Stream.Heartbeat.Failure`
[🔗](https://github.com/elixir-vibe/llm_proxy/blob/v0.3.1/lib/llm_proxy/stream/heartbeat.ex#L13)

A boundary marker for failures raised by a lazy upstream stream.

# `t`

```elixir
@type t() :: %LLMProxy.Stream.Heartbeat.Failure{reason: term()}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*