src/utils/spawn.js
function spawnNodes (n, factory, callback) {
  timesSeries(n, (_, cb) => factory.spawnNode(cb), callback)
}
function spawnNodes (n, factory, callback) {
  timesSeries(n, (_, cb) => factory.spawnNode(cb), callback)
}
function spawnNodes ( n , factory , callback ) { timesSeries ( n , ( _ , cb ) => factory . spawnNode ( cb ) , callback ) }
Spawn n nodes
Spawn n nodes