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From a flutter frontend, what is the easiest way to understand if the ai agent is speaking?

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If you want to check whether the AI agent is speaking from a Flutter frontend, you can keep an eye on the agent's state using the participant attributes. The state is available as `lk.agent.state`, and it can be things like `initializing`, `listening`, `thinking`, or `speaking`. When you see `speaking`, it means the agent is currently replying.
Here’s a quick example:
```String agentState = participant.attributes['lk.agent.state'];
if (agentState == 'speaking') {
  // Agent is currently speaking
}``` Sources: <https://docs.livekit.io/agents/v0/voice-agent/|AI voice agents | LiveKit Docs>