fold

import arrow.fx.stm.TArray
import arrow.fx.stm.atomically

suspend fun main() {
  //sampleStart
  val tarr = TArray.new(size = 10, 2)
  val result = atomically {
    tarr.fold(0) { acc, v -> acc + v }
  }
  //sampleEnd
  println("Result $result")
}