export async function getTPS(agent) {
  const perfSamples = await agent.connection.getRecentPerformanceSamples()

  if (
    !perfSamples.length ||
    !perfSamples[0]?.numTransactions ||
    !perfSamples[0]?.samplePeriodSecs
  ) {
    throw new Error("No performance samples available")
  }

  const tps = perfSamples[0].numTransactions / perfSamples[0].samplePeriodSecs

  return tps
}