.preflight()

Query a current status of queues and fees

Example response

{
  cost: {lamports: 576131, sol: 0.000576131},
  cluster: 'devnet',
  payer: '8XXXzYKeJ4N5HRAXtXYBKwU3FxGzJPWBDXSipSr41Gvx',
  rpc: 'https://api.devnet.solana.com',
  taxonomy: { create: [ [Object] ], update: [] }
}