# `PhoenixAI.Message`
[🔗](https://github.com/franciscpd/phoenix-ai/blob/main/lib/phoenix_ai/message.ex#L1)

Represents a single message in an AI conversation.

# `role`

```elixir
@type role() :: :system | :user | :assistant | :tool
```

# `t`

```elixir
@type t() :: %PhoenixAI.Message{
  content: String.t() | nil,
  metadata: map(),
  role: role(),
  tool_call_id: String.t() | nil,
  tool_calls: [PhoenixAI.ToolCall.t()] | nil
}
```

---

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