Llm

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session.llm(
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{
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  vendor: 'openai',
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  model: "gpt-4o-realtime-preview-2024-10-01",
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  auth: {
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    apiKey
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  },
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  actionHook: '/final',
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  eventHook: '/event',
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  toolHook: '/toolCall',
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  events: [
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    'conversation.item.*',
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    'response.audio_transcript.done',
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    'input_audio_buffer.committed'
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  ],
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  llmOptions: {
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    response_create: {
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      modalities: ['text', 'audio'],
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      instructions: 'Please assist the user with their request.',
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      voice: 'alloy',
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      output_audio_format: 'pcm16',
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      temperature: 0.8,
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      max_output_tokens: 4096,
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    },
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    session_update: {
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      tools: [
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        {
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          name: 'get_weather',
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          type: 'function',
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          description: 'Get the weather at a given location',
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          parameters: {
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            type: 'object',
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            properties: {
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              location: {
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                type: 'string',
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                description: 'Location to get the weather from',
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              },
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              scale: {
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                type: 'string',
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                enum: ['fahrenheit', 'celsius'],
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              },
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            },
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            required: ['location', 'scale'],
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          },
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        },
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      ],
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      tool_choice: 'auto',
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      input_audio_transcription: {
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        model: 'whisper-1',
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      },
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      turn_detection: {
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        type: 'server_vad',
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        threshold: 0.8,
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        prefix_padding_ms: 300,
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        silence_duration_ms: 500,
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      }
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    }
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  }
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})

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session.llm({
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  vendor: 'google',
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  model: 'models/gemini-2.0-flash-live-001',
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  auth: { apiKey: process.env.GEMINI_API_KEY },
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  actionHook: '/final',
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  eventHook: '/event',
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  toolHook: '/toolCall',
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  connectOptions: {
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    host: 'generativelanguage.googleapis.com',
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    version: 'v1beta'
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  },
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  llmOptions: {
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    setup: {
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      generationConfig: {
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        speechConfig: {
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          voiceConfig: { prebuiltVoiceConfig: { voiceName: 'Aoede' } }
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        }
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      },
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      systemInstruction: {
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        parts: [{ text: 'You are a helpful assistant named Barbara.' }]
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      }
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    },
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    greeting: 'Greet the caller warmly and ask how you can help.',
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    sessionResumption: {}
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  }
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});