input_stream: "HTTP_REQUEST_PAYLOAD:input"
output_stream: "HTTP_RESPONSE_PAYLOAD:output"
node {
  name: "T2sExecutor"
  input_side_packet: "TTS_NODE_RESOURCES:t2s_servable"
  calculator: "T2sCalculator"
  input_stream: "HTTP_REQUEST_PAYLOAD:input"
  output_stream: "HTTP_RESPONSE_PAYLOAD:output"
  node_options: {
    [type.googleapis.com / mediapipe.T2sCalculatorOptions]: {
      models_path: "./",
      plugin_config: '{ "NUM_STREAMS": "1" }',
      target_device: "CPU"
    }
  }
}